Advertisements
Advertisements
प्रश्न
Prove the following identities:
`sqrt((1 + sinA)/(1 - sinA)) = cosA/(1 - sinA)`
Advertisements
उत्तर
`sqrt((1 + sinA)/(1 - sinA))`
= `sqrt((1 + sinA)/(1 - sinA) xx (1 - sinA)/(1 - sinA))`
= `sqrt((1 - sin^2A)/(1 - sinA)^2)`
= `sqrt(cos^2A/((1 - sinA)^2)`
= `cosA/(1 - sinA)`
संबंधित प्रश्न
if `cos theta = 5/13` where `theta` is an acute angle. Find the value of `sin theta`
Prove the following identities:
`sqrt((1 - sinA)/(1 + sinA)) = cosA/(1 + sinA)`
Prove the following identities:
`sinA/(1 - cosA) - cotA = cosecA`
Prove the following identities:
(1 + tan A + sec A) (1 + cot A – cosec A) = 2
`((sin A- sin B ))/(( cos A + cos B ))+ (( cos A - cos B ))/(( sinA + sin B ))=0`
Write the value of `4 tan^2 theta - 4/ cos^2 theta`
If x = a cos θ and y = b sin θ, then b2x2 + a2y2 =
Prove the following identity :
`(cosecθ)/(tanθ + cotθ) = cosθ`
Find the value of `θ(0^circ < θ < 90^circ)` if :
`cos 63^circ sec(90^circ - θ) = 1`
If sin θ = `1/2`, then find the value of θ.
