If tan A + cot A = 4, then tan4 A + cot4 A is equal to
If 2y cos Î¦ = x sin Î¦ and 2x sec Î¦ - y cosec Î¦ = 3, the x2 + 4y2 =
If secÎ¦ + tanÎ¦ = p, then tanÎ¦ is equal to
If sinÎ¦ = 2t/1 +t2 and Î¦ lies in the second quadrant, then cos Î¦ is
If sinÎ¦ + cos Î¦ = 0 and 0 < Î¦ < Ï€, then Î¦=
If 5 tanÎ¦ = 4 then
Let A and B be acute angles such that sin A = sin2 B
The value of
If tanÎ¦ + secÎ¦ = ex, then cosÎ¦ equals
If a lies in the second quadrant and 3 tan A + 4 = 0, then
If cos Î¦ - sin Î¦ âˆš2sinÎ¦, then cosÎ¦ + sinÎ¦ is equal to
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