memo2159 memo2159

17-05-2020
Mathematics

contestada

Which of the following is not an identity?
O A. 2cos2x-1 = 1 - 2sin2x
O B. secx cscx(tanx + cotx) = sec2x + csc2x
O C. 2sin?x- sinx = 1
D. sin2x + tan2x + cos2x = secax

Respuesta :

lamismaestrella12 lamismaestrella12

12-12-2020

Answer:

C. 2 sin^2x-sinx=1

Step-by-step explanation:

a p e c

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