4/sin^2theta-4/tan^2theta is equal
Answers
Answered by
1
Answer:
4
Step-by-step explanation:
To find --> Value of
( 4 / Sin²θ - 4 / tan²θ )
Solution---> We know that
1 + Cot²θ = Cosec²θ
=> 1 = Cosec²θ - Cot²θ
=> Cosec²θ - Cot²θ = 1
Now
4 / Sin²θ - 4 / tan²θ
We know that,
1 / Sinθ = Cosecθ and 1 / tanθ = Cotθ
using this we get
= 4 ( 1 / Sin²θ ) - 4 ( 1 / tan²θ )
= 4 ( Cosec²θ ) - 4 ( Cot²θ )
= 4 ( Cosec²θ - Cot²θ )
Putting ( Cosec²θ - Cot²θ ) = 1
= 4 ( 1 )
= 4
Additional information--->
1) Sin²θ + Cos²θ = 1
Cos²θ = 1 - Sin²θ
Sin²θ = 1 - Cos²θ
2) 1 + tan²θ = Sec²θ
tan²θ = Sec²θ - 1
Sec²θ - tan²θ = 1
Answered by
6
4
#answerwithquality #bal
Similar questions