Practicing Success
Practicing Success
CUET Preparation Today
If $sin \theta = \frac{4}{5}$, find the value of sin3θ. |
$\frac{32}{45}$ $\frac{44}{125}$ $\frac{64}{125}$ $\frac{12}{25}$ |
$\frac{44}{125}$ |
we know, sin3θ = 3sinθ - 4sin³θ Given:- sinθ = \(\frac{4}{5}\) sin3θ = 3 × \(\frac{4}{5}\) - 4 × (\(\frac{4}{5}\))³ = \(\frac{12}{5}\) - \(\frac{256}{125}\) = \(\frac{300 - 256}{125}\) = \(\frac{44}{125}\) |
