Question

Question 7 plz answer fast​

Answer 1

Answer:

1

Step-by-step explanation:

sin²x = 1- cos²x

= 1- 1/4

sin²x = 3/4

sinx = √3/2

2 sin²x - 4 cos³x

2 (√3/2) ² - 4 (½)³

2 (3/4) - 4 ( 1/8)

3/2 - 1/2

2/2

1