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Answer:
Arrange in ascending order:
Arrange in descending order:
Can you help me out in this question!I want the answers ..
Please mention with the steps..
Thank you.
Answer:
225/64
Step-by-step explanation:
Given:
cot θ = 15/8
To evaluate:
(2+2sinθ) (1-sinθ)/(1+cosθ)(2-2cosθ)
cotθ = 15/8
We know that, cot θ= cosθ/sinθ
This implies , cosθ/sinθ = 15/8
Thus, cosθ = 15/x and sin θ = 8/x ------------------ Eq 1
We know that,
1 + cot^2θ= cosec^2θ
1+(15/8)^2= cosec^2θ ( Substituting cotθ given value)
1+ 225/64 = cosec^2θ
268/64 = cosec^2θ
On rooting
17/8 = cosecθ
17/8 = 1/sinθ ( Because cosecθ=1/sinθ)
Thus,
8/17 = sinθ
Comparing the denominator in the equation 1 we get
x = 17
Thus by substituting x
cosθ = 15/17.
Now in the equation we have
(2+2sinθ) (1-sinθ)/(1+cosθ)(2-2cosθ)
= (2 + 2 *8/17) ( 1- 8/17) / ( 1+15/17)(2-2*15/17)
= (2+16/17)(9/17) / (32/17)(2-30/17)
= (50/17)(9/17) / (32/17)(4/17)
= 50 * 9/32 * 4
= 225/64
Thank you