यदि x = a sec θ तथा y = b tanθ हो तो (x²/a² - y² / b² ) का मान होगा?
(a) 1
(b) - 1
(c) 2
(d) -2
Adv.
यदि a cos θ + b sin θ = 8 तथा a sin θ - b cos θ = 5 हो तो (a² + b²) = ?
(a) 13
(b) 40
(c) 89
(d) 39
यदि (cos x + sin x ) = √2 cos x हो तो (cos x - sin x) = ?
(a) -√2 cos x
(b) √2 sin x
(c) 1/√2 sec x
(d) 1/√2 cosec x
यदि cos θ = 0.6 हो तो (5 sin θ - 3 tan θ) = ?
(a) 2
(b) √2
(c) 0
(d) 1/2
यदि secA = 25/7 हो तो sinA = ?
(a) 7/24
(b) 24/7
(c) 24/25
(d) 25/24
यदि tanA = 1/√3 हो तो secA = ?
(a) √3/2
(b) 2/√3
यदि cosec A = √10 हो तो secA = ?
(a) 1/√10
(b) 2/√10
(c) 3/√10
(d) √10/3
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