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#1 2014-02-13 18:00:38

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,062

trigonometry#6

here comes one more trig. question big_smile

if


then
)

options are:-

a)

b)

c)

d)


friendship is tan 90°.

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#2 2014-02-13 21:09:19

Bob
Administrator
Registered: 2010-06-20
Posts: 10,053

Re: trigonometry#6

hi Niharika

I think that means beta = 90 - alpha.

..........................................

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#3 2014-02-14 02:17:58

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,049

Re: trigonometry#6

Doesn't
imply that
(up to a period of 2pi)?

From that we get:

Last edited by anonimnystefy (2014-02-14 02:20:15)


“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
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#4 2014-02-14 15:37:21

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,062

Re: trigonometry#6

thanx.
that was really good.
smile


friendship is tan 90°.

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