Question

if 15 cotA=8, find sinA and secA​

Answer 1

15 cot A = 8

cot A = 8/15

by Pythagoras theorem......

$(15x) {2 + 8x}^{2} = hypotenuse \: square$

17x = hypotenuse...

now

sin A = H/H = 17/8

secA= H/B = 17/8 ...

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Answer 2

Step-by-step explanation:

CotA=8/15=cosA/sinA.

hyp²=8²+15²

=√64+225@=√289=17

sinA=opp/hyp=15/17

cosA=8/17

secA=1/cosA=17/8.

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