Question

find value of cosΘ if 2sin²Θ + 3sinΘ=0

Answer 1

Step-by-step explanation:

$2 {sin}^{2} \alpha + 3sin \alpha = 0 \\ \\ sin \alpha (2sin \alpha + 3) = 0 \\ \\ sin \alpha = 0............sin \alpha = \frac{ - 3}{2} \\ \\ sin \: \alpha = 0 \\ \\ \alpha = 0.... \\ \\ cos \: \alpha = cos \: (0) = 1$

Answer 2

Step-by-step explanation:

as I explained may it helps you!