Write the value of cot^2 A - 1/sin^2 A
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Answered by
3
cot^A-1/sin^2A
=(cos^2A/sin^2a)-1/sin^2A
=cos^2A-1/sin^2A ( sin^2A+cos^2A=1)
=-sin^2A/sin^2A
=-1
=(cos^2A/sin^2a)-1/sin^2A
=cos^2A-1/sin^2A ( sin^2A+cos^2A=1)
=-sin^2A/sin^2A
=-1
Answered by
4
Cot^2A -1/sin^2A
=Cos^2A/Sin^2A-1/sin^2A
=(Cos^2A-1)/Sin^2A
=-sin^2A/Sin^2A
= -1
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