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March 26, 2017

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Can someone check my answers please!!!

Simplify (tan ^2 theta csc^2 theta-1)/(tan^2 theta).
My answer: 1

Simplify ((cos x)/(sec x-1)) + ((cos x) /(sec x +1)

My answer: 2cot^2 x

Find a numerical value of one trigonometric function of x if (tan x/cot x )– (sec x/cos x ) = (2/csc x).

My answer: sin x= -1/2

  • Pre Calculus. - ,

    I agree with all 3 results.

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