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Question

If cscθsinθ=a3, secθcosθ=b3 P.T a2b2(a2+b2)=1

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Solution

cscθsinθ=a3
cos2θsinθ=a3
secθcosθ=b3
sin2θcosθ=b3
a4b2+a2b4=cos83θsin43θsin43θcos23θ+cos43θsin23θsin83θcos43θ
=cos2θ+sin2θ
=1
a2b2(a2+b2)=1


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