Find the value of Trigonometric expression.
1) Cos [Sin^-1 (3/5)]
2) Cos [Tan^-1 (7/5)]
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Cos [Sin^-1 (3/5)] = 4/5
Cos [Tan^-1 (7/5)]= 6(sq.rt.85)/85
Please see the attached file.
Use sketch to find the exact value of the following Trigonometric expressions.
Step by step solution :
Detailed step by step solutions of all the problems attached are given in such a way that student can easily understand and work out other problems of the same type independently.
The types of Trigonometric Expressions solved are Cos [Sin^-1 (3/5)] Cos [Tan^-1 (7/5)], etc.