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If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` +`1/sec q` +`1/sec r` +`1/sec s`
...If (5sinx - cosx) = 2√2sinx, then find the value of 'tanx'
If sec2 θ = 4, then find the value of sin2 θ + cosec (90 - θ) where 0o < θ < 90o.
The minimum value of 9 cos2 θ + 36 sec2 θ is
What is the value of cos75°?
If tanθ = (2/√5), then find the value of cos2 θ
If sin θ and cos θ are the root of standard Quadratic Equation , then which of the following is true ?
1. a2 + b2 - 2ac =...