bjbarrett23
bjbarrett23 bjbarrett23
  • 04-05-2017
  • Mathematics
contestada

Help please trigonometric identities

Help please trigonometric identities class=

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akaleti47
akaleti47 akaleti47
  • 04-05-2017
cot=cos/sin

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

that proves it
Answer Link
bcalle
bcalle bcalle
  • 04-05-2017
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
Answer Link

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