Which of the following is a solution to 2sin^2x+sinx-1=0? A. 45 degrees B. 200 degrees C. 240 degrees D. 270 degrees E. 330 degrees

asked Apr 11, 2023 4.1k views

11 votes

Which of the following is a solution to 2sin^2x+sinx-1=0?

A. 45 degrees
B. 200 degrees
C. 240 degrees
D. 270 degrees
E. 330 degrees

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8 votes

Answer

$x = (\pi )/(6) + 2\pi n, (5\pi )/(6) + 2\pi n, (3\pi )/(2) + 2\pi n$ , for any integer n

Henrik R answered Apr 14, 2023

4.4k points

7 votes

Answer:

D or 270°

Explanation:

2sin^2x+sinx-1

2sin^2(270°)+sin(270°)-1=0

Tec answered Apr 17, 2023

by Tec

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