get A
please
2007-10-14 06:22:14 · 3 answers · asked by Janson C 1 in Science & Mathematics ➔ Mathematics
3 cos^2 A = cos^2 A
cos^2 A = 0
A = pi/2, pi + pi/2, 2pi + pi/2, 3pi + pi/2, 4pi + pi/2, 5pi + pi/2, 6pi + pi/2....
2007-10-14 06:28:50 · answer #1 · answered by MathDude356 3 · 0⤊ 0⤋
3 cos^2A = cos^2A
2 cos^2A = 0
cos A = 0
A = pi/2, 3pi/2 and multiples thereof
2007-10-14 06:27:54 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
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2007-10-14 06:34:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋