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8 June, 12:30

What is a factor of: tan^2x + 2tan (x) cos (x) + cos^2 (x)

tan (x) + cos (x)

tan (x) - cos (x)

2tan (x) - cos (x)

Both A and B

+2
Answers (1)
  1. 8 June, 13:03
    0
    Lets factor this quadratic function

    the factors are (tan x + cos x) (tan x + cos x)

    So the answer is choice A.
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