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Tan A = 4/5, in triple form, would be:
If cos A = ½ then A =
If cos A = 1/2 then A =
If sinA = 4/5 and tanB = 5/12 then cos(A+B) equals:
Find triple solutions to the equation tan^{2}A = 1/4
Find triple solutions to the equation 3sin^{2}A – 2sinA = 0
Solutions to the equation cos^{2}A = ¾ in the range 0 to 360 degrees are:
Solutions to the equation cos^{2}A = ¾ in the range 0 to 360 degrees are:
The identity cos2A = (cosA + sinA)(cosA – sinA) can be proved by showing each side is equal to:
Solutions to 6cosA + 5sinA = 5 are: