If A is an acute angle and 3 tan A - 4 = 0, then 3 sin A + 4 cos A =
24
(A) 0
(C)
(D) 1
5
5
24
(B)
Answers
Answered by
2
Step-by-step explanation:
tan A=4\3=P\B
H^2=P^2+B^2
=4^2+3^2
=16+9=25
H=5
sinA=P\H=4\5
cos A=B\H=3\5
=4\5+4×3\5=4\5+12\5=16\5
it is not equal to 24
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