Question 5 - If 3cOSA + 4sinA = 4
then sinA is
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Answer:
4 sinA + 3 cosA =4
devide all by cosA
4 tanA + 3 = 4 sec A
both side square
16 tan2A+24 tanA +9=16 sec2A=16(1+tan2A)
suppose tan A =T then
16T2+24T+9=16+16T2
24T= 7
T = tanA= 7/24 ans
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