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Prove that left site is equal to the right.?

0 votes

There might be a mistake, because it's not uncommon in this book that I'm using!

trigonometric-identities

asked Jul 23, 2014 in TRIGONOMETRY by anonymous

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1 Answer

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The trigonometric equation is .

Left hand side :

Pythagorean identity : .

Trigonometric function: tan x = sin x/cos x.

.

= Right hand side.

answered Jul 23, 2014 by lilly Expert

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