If cos A = 2/3 then find the value of 2sinA + cos A.
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Step-by-step explanation:
cosA=2/3
sinA=√1-cos²A
sinA=√1-4/9
sinA=√5/√9
sinA=√5/3
2sinA+cosA
=2.√5/3+2/3
=2√5+2/3
=2(√5+1)/3
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