Question

If sin(theta) = 7/25 then, find the cost theta.
Plz Answer.. I know it how to solve but just asking. ​

Answer 1

Answer:

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plz refer the above attachment.

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Answer 2

sin(threta)=7/25

sin(threta)=p/h=7/25

let p=7x and h=25x

so,(h)^2=p^2+b^2

625x^2=49x^2+b^2

625x^2-49x^2=b^2

576x^2=b^2

√{ 576x^2}=b

24x=b

therefore, cos (threta)=b/h

=24/25 answer

I hope this is useful for you...