Asked by Iris
A.Verify the identity.
B.Determine if the identity is true for the given value of x. Explain.
[cot(x) – 1] / [cot(x) + 1] = [1 – tan(x)] / [1 + tan(x)], x = π/4
I solved A and I believe it's true; however, I need help with B.
B.Determine if the identity is true for the given value of x. Explain.
[cot(x) – 1] / [cot(x) + 1] = [1 – tan(x)] / [1 + tan(x)], x = π/4
I solved A and I believe it's true; however, I need help with B.
Answers
Answered by
bobpursley
Put in for x the value.
[cot(x) – 1] / [cot(x) + 1] = [1 – tan(x)] / [1 + tan(x)]
or
[cot(PI/4) – 1] / [cot(PI/4) + 1] = [1 – tan(PI/4)] / [1 + tan(PI/4)]
or
(1-1)/2=?=(1-1)/(1+1)
0=0
[cot(x) – 1] / [cot(x) + 1] = [1 – tan(x)] / [1 + tan(x)]
or
[cot(PI/4) – 1] / [cot(PI/4) + 1] = [1 – tan(PI/4)] / [1 + tan(PI/4)]
or
(1-1)/2=?=(1-1)/(1+1)
0=0
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