Math, asked by Henry141, 1 year ago

plz solve this question

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Answered by arunp9415paroyr
2
that is the solution of that question
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Answered by PravinRatta
0

Answer:

a Sin Ф - b Cos Ф/ a Sin Ф + b Cos Ф = a² - b²/ a² + b²............i

Given

tan Ф = a/b

Divide the equation by Cos Ф

a tan Ф - b / a tan Ф + b = a * (a/b) - b/ a * (a/b) + b

(a² - b²)b / (a² + b²)/b = a² - b²/ a² + b² = R.H.S

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