If tan^1 4/3 = 0 , find the value of cos ¢ .
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cos = root 205. / 3 ..
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Hi !!
Tan-¹ 4/3 = ¢ , where as ¢ € ( -π/2 , π/2 ) .
Therefore,
Tan theta = 4/3
We know that cos theta > ¢ when ¢ € ( -π/2 , π/2 ) .
Therefore,
Cos theta = 1/ sec theta = 1/ √1 + tan² theta = 1 / √1 + 16/9 = 3/5.
Tan-¹ 4/3 = ¢ , where as ¢ € ( -π/2 , π/2 ) .
Therefore,
Tan theta = 4/3
We know that cos theta > ¢ when ¢ € ( -π/2 , π/2 ) .
Therefore,
Cos theta = 1/ sec theta = 1/ √1 + tan² theta = 1 / √1 + 16/9 = 3/5.
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