Question

Trig: solve for theta

Answer 1

$\\ \sf\longmapsto 5sin\theta-8=3sin\theta-9$

$\\ \sf\longmapsto 5sin\theta-3sin\theta=9+8$

$\\ \sf\longmapsto 2sin\theta=17$

$\\ \sf\longmapsto sin\theta=\dfrac{17}{2}$