highschoolgraduate highschoolgraduate

20-05-2019
Mathematics

contestada

Simplify this expression: cos t(sec t − cos t)

A.
cos2t

B.
1 − tan2t

C.
1 + tan2t

D.
sin2t

Respuesta :

MathPhys MathPhys

20-05-2019

Answer:

D

Step-by-step explanation:

(cos t) (sec t − cos t)

1 − cos² t

sin² t

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