Question

guys a doubt
if sinA=12/13 find cosA and Tan A using the identities of trignometry​

Answer 1

Step-by-step explanation:

The basic trig functions are defined in a right-angled triangle as:

sinθ=opposite/hypotenuse

cosθ=adjacent/hypotenuse

tanθ=opposite/adjacent

So, as we are given

cosA=5/13

, it means that

in this specific right-angled triangle,

the side adjacent to

A=5

and

the hypotenuse =13

Using Pythagoras' Theorem.

opp=√13²−5²=12

So now the side opposite A is 12

Now we can give the trig ratios as:

sinA=opposite/hypotenuse=12/13

cosA=adjacent/hypotenuse=5/13

tanA=opposite/adjacent=12/5

hope this helps you

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Answer 2

Step-by-step explanation:

think this image will help you

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