Q32 of 180 Page 1

If x = cot A + cos A and y = cot A – cos A, prove that

OR


If a cos θ – b sin θ = c, prove that .


⇒


⇒


⇒


⇒


Substituting above values in the equation, we get


⇒


⇒


⇒


⇒


Hence, Proved.


OR


⇒


=


=


=


∴


⇒


⇒


⇒


Hence, proved


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