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Evaluate tan(1/2 (cos^-1)0).?

2006-11-20 12:00:36 · 2 answers · asked by MSI 1 in Science & Mathematics ➔ Mathematics

2 answers

cos ^-1 0 = pi/2
1/2 cos^-1 0 = pi/4

so tan(1/2 cos^-1(0)) = tan pi/4 = 1

2006-11-20 12:07:38 · answer #1 · answered by Mein Hoon Na 7 · 0⤊ 0⤋

tan(1/2 (cos^-1)0)
tan(1/2(90deg))
tan(45deg)
=1

2006-11-20 20:07:41 · answer #2 · answered by Dupinder jeet kaur k 2 · 0⤊ 0⤋

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