Question

(asinA-bcosA)²+(acosA+bsinA)²=a²+b²
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Answer 1

Answer:

asqsin sq A + bsq cos sq A - 2 bcos A * a sqsin A+ aaq cos Sq A + b sin Sq A - 2 bsinA *acosA

asq sin Sq A + a sqcos Sq A + b sin Sq A + b cos Sq A

a ( sin sqA + cos Sq A ) + bsq( sin sq b + cos sq b)

a Sq + b Sq

by using identity sin Sq A + cos sq A = 1

Answer 2

Step-by-step explanation:

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