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Prove that

0 votes

tanA+cotA = 2cosec2A?

asked Apr 27, 2014 in ALGEBRA 2 by anonymous

1 Answer

0 votes

The trigonometric identity is image

Left hand side identity image

image

image

From the pythagorean identities  image

image

Multiple by 2 to numarator and denominator.

image

image

From the trigonometric reciprocal identities.

image

= Right hand side identity

answered Apr 28, 2014 by david Expert

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