Consider right triangle $$\triangle J K L$$ below. ![](http://admin.getprephub.com/media/editor/ra18_20230123190820299971.png) Which expressions are equivalent to $$\sin (\angle K)$$ ?

We know that, $$<L+<K+90^{\circ}=180^{\circ}$$ Or, $$<L+<K=90^{\circ}$$ Or, $$<K=90^{\circ}-<L$$ Therefore, $$\sin (\angle K)=\sin (90^{\circ}-<L)=\cos (<L)$$ [By complementary angles]

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Question

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MCQ

Consider right triangle $\triangle J K L$ below.

Which expressions are equivalent to $\sin (\angle K)$ ?

Select all that apply :

$\cos(<L)$

$\frac{\text{Length of side adjacent to }<k}{\text{Length of hypotenuse}}$

$\frac{\text{Length of side adjacent to }<L}{\text{Length of hypotenuse}}$

$\frac{J K}{K L}$

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