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Using the formula cos (A+B) = cosA cosB ...

Using the formula `cos (A+B) = cosA cosB -sin A sin B`. find the value of sin `15^(@)`.

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To find the value of \(\sin 15^\circ\) using the cosine addition formula, we can utilize the identity: \[ \sin A = \cos(90^\circ - A) \] Thus, we can express \(\sin 15^\circ\) as: ...
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