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Delicious77 [7]
3 years ago
13

Simplify: sec x – sec x (sin x)2

Mathematics
2 answers:
givi [52]3 years ago
5 0

Answer:

Sec (x) - 2 tan (x)

Step-by-step explanation:

CaHeK987 [17]3 years ago
5 0

Answer:

Cos x

Step-by-step explanation:

HINT:

1 -   Sin² x = Cos² x

Sec x = \frac{1}{Cos x}

Sec x - Sec x*(Sin x)² = Sec x (1 - Sin² x)

                                  = Sec x * Cos²x

                                  = \frac{1}{Cos x}*Cos^{2} x

                                  = Cos x

                               

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Step-by-step explanation:

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Does this work or is it extraneous? It is extraneous because it will not work for  2(a) + 4 = - 6  

You get 6 = - 6 which is not correct. But you did give the second best answer.

a + 2 = - 3

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===========

This is an extremely hard or tricky or sneaky problem. It takes a lot of conniving to get the right answer and 1 is not a left field answer. It just does not happen to be correct.

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