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#51 2011-10-08 04:03:59
- Howardroark
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Re: Trigonometry
Hi ganesh,
I come from a civilization which has given the world the number 0..
#52 2011-10-08 04:34:07
- anonimnystefy
- Real Member
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Re: Trigonometry
hi ganesh
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#53 2011-10-09 00:34:00
- ganesh
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Re: Trigonometry
Hi bobbym, Howardroark, and anonimnystefy,
The solution T#13 is perfect. Excellent!
T#14. If sin θ = cos θ and θ is acute, find the value of tan θ.
Character is who you are when no one is looking.
#54 2011-10-09 00:43:12
- bobbym
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Re: Trigonometry
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#55 2011-10-09 01:24:07
- anonimnystefy
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Re: Trigonometry
hi ganesh
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#56 2011-10-09 22:44:28
- ganesh
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Re: Trigonometry
Hi bobbym and anonimnystefy,
The solution T#14 is correct. Brilliant!
T#15. A flag staff stands on the top of one high tower. From a point on the ground the angle of elevation of the top of the flag staff is 60o and from the same point the angle of elevation of the top of the tower is 45o. Find the height of the flag staff.
Character is who you are when no one is looking.
#57 2011-10-09 22:52:52
- bobbym
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Re: Trigonometry
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#59 2011-10-11 00:06:46
- ganesh
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Re: Trigonometry
Hi bobbym and Maiya,
I am sorry I forgot to mention the height of the tower is 6 meters. Regretted!
T#16. A man standing on top of a multistoreyed building 45 meter high is looking at two advertising pillars on the same side whose angles of depression are 30 degrees and 45 degrees. What is the distance between the two pillars?
Character is who you are when no one is looking.
#60 2011-10-11 00:21:38
- bobbym
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Re: Trigonometry
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#61 2011-11-01 01:50:11
- Arthur Bon Zavi
- Full Member
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Re: Trigonometry
Last edited by Arthur Bon Zavi (2011-11-01 03:54:05)
In the heart of the night, when it's dark in the lights; I heard the loudest voice - a gun shot on the floor.
#62 2011-11-01 22:38:21
- ganesh
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Re: Trigonometry
Hi bobbym and Arthur Bon Zavi,
The solution T#16 is correct. (45(√3 - 1)). Excellent, bobbym!
T#17. A surveyor needs to determine the height of a light-house. He measures the angle at A and finds that tan A = 3/4. What is the height of the light-house, if A is 40 meters from the base?
Character is who you are when no one is looking.
#63 2011-11-01 22:42:08
- bobbym
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Re: Trigonometry
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#64 2011-11-01 22:43:40
- Arthur Bon Zavi
- Full Member
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Re: Trigonometry
Can you show the working of #16 ?
In the heart of the night, when it's dark in the lights; I heard the loudest voice - a gun shot on the floor.
#65 2011-11-01 23:04:55
- bobbym
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Re: Trigonometry
Hi;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#67 2011-11-09 23:14:46
- ganesh
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Re: Trigonometry
Hi bobbym and Maiya,
The solution T#17 is perfect. Excellent!
T#18. The angle of elevation of the top of a tower at a distance of 50 meters from its foot on horizontal plane is found to be 60o. Find the height of the tower.
Character is who you are when no one is looking.
#68 2011-11-09 23:20:01
- bobbym
- Administrator
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Re: Trigonometry
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#70 2011-11-10 23:16:53
- ganesh
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Re: Trigonometry
Hi bobbym and Maiya,
The solution T#18 is perfect. Excellent!
T#19. A ladder is placed against a wall such that it reaches the top of the wall of height 6 meters and the ladder is inclined at an angle of 60o with the ground. Find how far the ladder is from the foot of the wall.
Character is who you are when no one is looking.
#71 2011-11-10 23:20:40
- bobbym
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Re: Trigonometry
Hi;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#73 2011-11-11 22:57:40
- ganesh
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Re: Trigonometry
Hi bobbym and Maiya,
The solution T#19 is correct. Brilliant!
T#20. From the top of a lighthouse, the angles of depression of two ships on either sides of the lighthouse are observed as 30o and 45o. If the height of the lighthouse is 200 meters, find the distance between the ships.
Character is who you are when no one is looking.
#74 2011-11-11 23:05:01
- bobbym
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Re: Trigonometry
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.