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19 February 2018 SSC MAINS
[A] tan A [B] tan 4 A [C] cot 4 A [D] cot A 151. What is the value of [1 – sin (90 – 2A)] / [1 + sin (90 + 2A)]?
[1 – sin (90 – 2A)] / [1 + sin (90 + 2A)] का भान क्मा है?
19 February 2018 SSC MAINS
[A] sinA.cosA [B]
152. What is the value of sin 75° + sin 15°?
sin 75° + sin 15° का भान क्मा है?
[A]√ [B] √ [C]√ [D]3/√
153. What is the value of [(cos 3θ + 2cos 5θ + cos 7θ)÷(cos θ + 2cos 3θ + cos 5θ)] + sin 2θ tan 3θ?
[(cos 3θ + 2cos 5θ + cos 7θ)÷(cos θ + 2cos 3θ + cos 5θ)] + sin 2θ tan 3θ का भान क्मा है? 19 February 2018 SSC MAINS
[A] cos 2θ [B] sin 2θ [C] tan 2θ [D] cot θ 154. What is the value of [2 sin (45 + θ) sin (45 – θ)]/cos 2θ?
[2 sin (45 + θ) sin (45 – θ)]/cos 2θ का भान क्मा है?
19 February 2018 SSC MAINS
[A] 0 [B] tan 2θ [C] cot 2θ [D] 1 155. What is the value of sin(900 + 2A)[4 cos2 (900 – 2A)]?
sin(900 + 2A)[4 cos2 (900 – 2A)] का भान क्मा है?
19 February 2018 SSC MAINS
[A] 2(cos3A – sin3 A) [B] 2(cos3A + sin3 A)
[C] 4(cos6A + sin6 A) [D] 4(cos6A – sin6 A)
156. What is the value of [cos (90 + A)÷sec (270 – A)] + [sin (270 + A)÷cosec (630 – A)]?
[cos (90 + A)÷sec (270 – A)] + [sin (270 + A)÷cosec (630 – A)] का भान क्मा है?
19 February 2018 SSC MAINS
[A] 3 sec A [B] tan A secA [C] 0 [D] 1
157. On walking 100 metres towards a building in a horizontal line, the angle of elevation of its top changes from 45° to 60°. What will be the height (inmetres) of the building?
एक बफजल्डगॊ की ओय 100 भीटय की एक ऺनै तज येखा से चरने ऩय इसके शीषण का उन्नमन कोण 45° से 60° हो जाता है। ईभायत की ऊॉ चाई(भीटय भें) क्मा होगी?
[C] [D]
19 February 2018 SSC MAINS
[A] 50(3 +√3) [B] 100(√3 + 1 )
19 February 2018 SSC MAINS
[C] 150 [D] 100 √3
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