tan 9° tan 43° tan 60° tan 47° tan 81° = ?
(a) √2
(b) √3
(c) 1/√2
(d) 1/√3
यदि √3 tan 2θ - 3 = 0 हो तो θ = ?
(a) 15°
(b) 30°
(c) 45°
(d) 60°
2 cos² 60° + 3 sin² 45° - 3 sin² 30° + 2 cos² 90° = ?
(a) 1 सही 3/4
(b) 1 सही 1/2
(c) 1 सही 1/4
(d) 2 सही 1/4
cot² 30° - 2 cos&3178; 30° 3/4 sec² 45° + 1/4 cosec² 30° = ?
(a) 1 3/4
(b) 1
(c) 2 3/4
(d) 3/4
(cos 60° - tan 30°)/ 1 + tan 60° tan 30° = ?
(a) 1
(b) 1/2
(c) 0
(d) 2
sin² 30° cos² 45° + 4 tan² 30° + 1/2 sin² 90° + 1/8 cot² 60° = ?
(a) 2
(b) 2 1/3
(c) 3 1/2
(d) 3 3/4
tan 30° cosec 60° + tan 60° sec 30° = ?
(a) 3
(b) 4/3
(c) 2
(d) 8/3
sin 60° cos 30° - cos 60° sin 30° = ?
(c) 3/2
(d) -1/2
यदि sin 2A = cos 3A हो तो A = ?
(a) 18°
(b) 105°
(c) 20°
(d) 24°
यदि tan x = 3 cot x हो तो x = ?
(c) 30°
यदि tan² 45° - cos² 30° = x sin 45° cos 45° हो तो x = ?
(b) -2
(c) 1/2
यदि x tan 45° cos 60° cot 60° = sin 60° cot 60° हो तो x = ?
(c) √3
(d) 1/√2
(sec² 60° + 2 cot² 30° - 5 sin² 45° ) का मान है?
(3 cos² 60° + 2 cot² 30° - 5 sin² 45°) का मान है?
(a) 13/6
(b) 17/4
(c) 4
(d) 1
(sin² 30° + 4cot² 45° - sec° 60°) का मान है?
(a) 0
(b) 1/4
(c) 1
यदि x = r sin A cos B, y = r sin A sin B तथा z = r cos A हो तो x² + y² + z² = ?
(a) 3r²
(b) r³
(c) r²
(d) 3 r
यदि (tan x + sin x) = m तथा (tan x - sin x) = n हो तो (m² - n² ) = ?
(a) √mn
(b) 2√mn
(c) 4√mn
(d) 4mn
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