anonymous
  • anonymous
How do I prove this: (secx-cosx)(cscx-sinx)=tanx/(1+tan^2x)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
left side: (1-cos^2x)/cosx * (1-sin^2x)/sinx (sin^2xcos^2x)/(sinxcosx) sinxcosx is that right?
anonymous
  • anonymous
hmmmm
anonymous
  • anonymous
you have a calculater?

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anonymous
  • anonymous
with the sin cos
anonymous
  • anonymous
yeah i do, but imnot suppose to use a calculator for this
Mertsj
  • Mertsj
\[(1/\cos-\cos)(1/\sin-\sin)=[ (1-\cos^2)/\cos][(1-\sin^2)/\sin]=(\sin^2/\cos)(\cos^2/\sin)\]

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