Question

Sin theta=a/b then find cos theta

Answer 1

Answer:

Here is ur answer dear......❤❤❤❤❤

Here I am using X instead of theta

It is given that ,

Sin X = a / b

Cos x = √( 1 - sin² x )

= √ [ 1 - ( a/b )² ]

= √ [ ( b² - a² ) / b²

= √ ( b² - a² ) / b

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