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spayn [35]
3 years ago
7

Help please trigonometric identities

Mathematics
2 answers:
ikadub [295]3 years ago
8 0
Sin^2x ( 1 + cot^2x) = 1
Change cot^2x to cos/sin
Sin^2x(1+cos^2x/sin^2x))=1
Distribute the sin^2x
Sin^2x + cos^2x = 1
1 = 1
bija089 [108]3 years ago
3 0
Cot=cos/sin

so, it becomes sin^2+cos^2=1

that proves it
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