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X attends singing class only after one person and has tuition neither in Ranchi nor in Noida. P attends singing class on Tuesday and has tuition in Meerut. Only three person attend singing class between P and T who do not have her tuition in Kanpur. Only three person attend singing class between Y and W but W attends singing class after P. Neither Y nor W attends singing class on Wednesday. So, there can be two possibilities- Y does not attend singing class in evening. From this case-2 will get eliminated. The one who attends class on Thursday has tuition centre in Kanpur. Both S and Q attend singing class on same day. Four person attend singing class between V and S. V attends singing class before S and has tuition centre in Lucknow. Both who has tuition centre in Pune and Dehradun attends singing class on same day. Q does not has tuition centre in Dehradun. U attends singing class immediately before R who has tuition centre in Delhi.
sin2 17˚ + sin2 19˚ + sin2 21˚ + sin2 23˚ + ……… + sin2 77˚ = ?
If 2ycosθ = x sinθ and 2xsecθ – ycosecθ = 3, then x 2 + 4y 2 = ?
If 0 ≤ θ ≤ 90°, and sin(2 θ +50°) = cos (4 θ + 16°), then what is the value of θ (in degrees)?
The minimum value of 12 sin θ + 5 cosθ is
If (sinx + siny) = a and (cosx + cosy) = b, then find the value of (sinx siny + cosx cosy).
[A] (a²+b²-2)/ 2
[B] (a2-b2<...
If cot2A = tan(A+6˚ ) , find the value of A? Given that 2A and A+6˚ are acute angles.
If Sinθ + Cosθ =√2 Cos(90 -θ ), then find the value of Cotθ ?
...If sec2 θ = 4, then find the value of sin2 θ + cosec (90 - θ) where 0o < θ < 90o.
...If α means +, β means -, ɣ means x, θ means ÷ then 30 θ 10ɣ 5α 10β20 is