5. If sin A-√6 cos A = √7 cos A, then
cos A + √6 sin A is equal to
(a) √6 sin A
(b) √7 sin A
(c) √6cos A
(d) √7 cos A
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Answer:
If sin A-√6 cos A = √7 cos A, then
cos A + √6 sin A is equal to 7 sin A
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