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Chapter 7: Q 900 (page 457)

In Problem, use a calculator to find the value of each expression rounded to two decimal places.

cot-1-5

Short Answer

Expert verified

Value of the expressioncot-1-5islocalid="1646553713675" -0.42.

Step by step solution

01

Step 1. Given information

An expression iscot-1-5.

02

Step 2. Value of the expression.

Consider the expression cot-1-5.

Use the formula: localid="1646553645353" cot-1x=tan-11x.

Put x=-5.

So,

localid="1646553702817" cot-1-5=tan-11-5=-0.42

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