(i)[1]
State $\cos\theta$.
(ii)[2]
State $\tan\theta$.
(iii)[1]
State $\sin(\theta + \pi)$.
Mathematics 9709 · AS & A Level · Trigonometry
Trigonometry — practice question
If $\theta$ is an obtuse angle in radians and $\sin\theta = k$, determine, in terms of $k$, an expression for
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