please the quetion9
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Answer:
so, Answer is 813/2937
Step-by-step explanation:
3cosθ = 5sinθ
=> cosθ/sinθ = 5/3
=> tanθ = 3/5
=>cosθ = 5/√(25+9)
=>cosθ = 5/√34
(5sinθ - 2sec³θ + 2cosθ) / (5sinθ + 2sec³θ - 2cosθ)
= (5cosθ - 2sec³θ) / (cosθ + 2sec³θ)
= (5cosθ - 2/cos³θ) / (cosθ + 2/cos³θ)
= (5cos⁴θ - 2) / (cos⁴θ + 2)
= (5 * 625/1156 - 2) / (625/1156 + 2)
= (3125 - 2312) / (625 + 2312)
= 813/2937 Ans....
manu0047:
sorry its the wrong ans
what is the right answer?
answer is 271/979
if you divide numerator and denominator of my answer by 3, you will get your answer.
so, the both answer is same....
ok
thanks
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