An angle which is equal to 360∘ is called _______ angle.
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If ABCD is a cyclic quadrilateral, then find the value of cos A cos B - cos C cos D.
A+B+C=π then what is the value of 25(A+B+C)
(cosA+sinA)2−(cosA−sinA)2 is equal to
If A+B+C=90o, then cotAcotBcotCcotA+cotB+cotC is equal to:
The value of cot(4π+θ).cot(4π−θ) is
The general solution of secθ+2=0 is
∣∣sinθ sin(θ+32π ) sin(θ−32π ) cosθ cos(θ+32π ) cos(θ−32π ) tanθ sin(2θ+34π ) sin(2θ−34π ) ∣∣ equals
If A+B=45o, prove that (cotA−1)(cotB−1)=2