If x = a \sin \theta \and y = b tan θ then prove that a^2/x^2-b^2/y^2 is

RRB Junior Engineer Stage 1 Model Papers 5

Question : 2 of 100

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x = a \sin θ \and y = b

tan θ then prove that

a^2/x^2-b^2/y^2

Solution:

a^2/{a^2 \sin^2 θ}-b^2/{b^2 \tan^2 θ}

\cosec^2 θ-\cot^2 θ=1

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