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  4. If minimum and maximum values of cos θ( sin θ+√ sin 2 θ+3) are m, M respectively then M-m is equal to (∀ θ ∈ R )

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Q. If minimum and maximum values of $\cos \theta\left(\sin \theta+\sqrt{\sin ^2 \theta+3}\right)$ are $m, M$ respectively then $M-m$ is equal to $(\forall \theta \in R )$

Trigonometric Functions

Solution:

Correct answer is '4'