SOLUTION: If cos beta = 0.6, find without using tables, the value of a) sin beta b) 1- cos^2 beta
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Question 672541
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If cos beta = 0.6, find without using tables, the value of a) sin beta b) 1- cos^2 beta
Answer by
Alan3354(69443)
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If cos beta = 0.6, find without using tables, the value of a) sin beta b) 1- cos^2 beta
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b) 1- cos^2 beta
= 0.64
= sin^2
================
a) sin beta
= 0.8 (or -0.8 in some quadrants)