Question

PLZ HELP!!! I HAVE AN EXAM!! Find cscΘ if sinΘ="\frac{-2}{7}" alt="\frac{-2}{7}" align="absmiddle" class="latex-formula"> and theta is between 180 to 270 THANK U!!
(with explanation pls)

Answer 1

$\boxed{\bold{\red{csc\theta=-\frac{7}{2}}}}$

$\large{\red{Solution\: given:}}$

$Sin\theta=\frac{-2}{7}$

we have

$cosec \theta=\frac{1}{Sin\theta} =\frac{1}{\frac{-2}{7}}\\=-\frac{7}{2}$