Advertisements
Advertisements
प्रश्न
Statement 1: sin2θ + cos2θ = 1
Statement 2: cosec2θ + cot2θ = 1
Which of the following is valid?
विकल्प
Only 1
Only 2
Both 1 and 2
Neither 1 nor 2
Advertisements
उत्तर
Only 1
Explanation:
From statement 2: cosec2θ – cot2θ = 1 is correct
APPEARS IN
संबंधित प्रश्न
Prove that `cosA/(1+sinA) + tan A = secA`
Prove the following trigonometric identities.
`(1 - cos theta)/sin theta = sin theta/(1 + cos theta)`
Prove the following trigonometric identities.
sec A (1 − sin A) (sec A + tan A) = 1
Prove that:
2 sin2 A + cos4 A = 1 + sin4 A
Prove the following identities:
`sqrt((1 - cosA)/(1 + cosA)) = sinA/(1 + cosA)`
`(1+ tan theta + cot theta )(sintheta - cos theta) = ((sec theta)/ (cosec^2 theta)-( cosec theta)/(sec^2 theta))`
Prove the following identity :
( 1 + cotθ - cosecθ) ( 1 + tanθ + secθ)
Prove the following identity :
`(cosA + sinA)^2 + (cosA - sinA)^2 = 2`
(sec θ + tan θ) . (sec θ – tan θ) = ?
If `cos θ = 24/25`, then sin θ = ?
