Explore BrainMass

# Finding Values of Trigonometric Expressions

Not what you're looking for? Search our solutions OR ask your own Custom question.

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

Find the value of Trigonometric expression.
1) Cos [Sin^-1 (3/5)]
2) Cos [Tan^-1 (7/5)]

See attached file for full problem description.

https://brainmass.com/math/trigonometry/finding-values-trigonometric-expressions-91415

#### Solution Preview

Cos [Sin^-1 (3/5)] = 4/5
Cos [Tan^-1 (7/5)]= 6(sq.rt.85)/85

Use sketch to find the exact value of the following Trigonometric expressions.
1) 2)

SOLUTIONS
1)

Step by step solution :

Let ...

#### Solution Summary

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.

\$2.49