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#1 Help Me ! » Help me with the triginometry question!!!:( » 2008-07-27 19:22:08
- helloying
- Replies: 1
12 cos x - 5 sin x = R cos (x + θ )
I got the answer already which is 13 cos (x + 22.6° )
The question is (12 cos x - 5 sin x)²
Find the max. and min. value and sovle x that satify the range of 0° to 360°
#2 Help Me ! » Urgent! Trigonometry question » 2008-07-22 22:47:34
- helloying
- Replies: 1
10 tan 2y + 7 tan y = 0
Find all value of y that satisfy the eqn. 
#3 Help Me ! » help with trigonometry » 2008-07-22 21:42:07
- helloying
- Replies: 1
Sin y =-5/13 Cos y = -4/5
both of them are in the same quadrant. Find, without the use of calculator, value of Sin 1/2 y
#4 Re: Help Me ! » Help solve this considered simple trigonometry question » 2008-07-12 17:11:18
hey how to upload a picture? i upload the diagram but it is not shown?
#5 Help Me ! » Help solve this considered simple trigonometry question » 2008-07-12 17:06:44
- helloying
- Replies: 2
by the way the triangle does noy have a straight line at AC. i'm just afraid that it is not clear.:)
#6 Help Me ! » Detecting age and date of birth » 2008-03-04 21:21:43
- helloying
- Replies: 1
Muliply the nunber of the month of your birth by 100.
Then add day of the monthh of your birth.
Mulitiply by2
Add 8
Mulitily by5
Add 4
Muliply by 10
Add 4
Add your age
Tell your final ans.
Substate by 444.
-- -- --
(MTH)(day)(age)
Task is to modify it and make another instrution with different numbers.
#7 Puzzles and Games » Where is the remainding $1 » 2008-02-16 14:57:44
- helloying
- Replies: 7
3 frens went to cafe.the bill was $75
Each gave $25
Waiter took it to counter.
The cashier decided to give them a dicount of $5 & asked waiter to return them $5
Now the waiter was confused, how to distribute $5 among 3 people?
He kept $2 in his pocket and gave $1 to each person.
So now each person actually paid $24 as they had taken one dollar back.
so $24 × 3=$72 and $2 in waiter pocket
It adds up to $74 but they had paid $75
Where is the remainding $1?
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