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Chapter 6: Q 39. (page 381)

Find the exact value of each expression. Do not use a calculator.

4sin90掳-3tan180掳

Short Answer

Expert verified

The exact value of4sin90掳3tan180掳=4

Step by step solution

01

Step 1. Given information

4sin90掳-3tan180掳

02

Step 2. Solution

sin90掳=1tan180掳=sin180掳cos180掳=0-1=0tan180掳=0Puttingthevaluesinthegivenexpressionweget,(4脳1)-(3脳0)=4So,4sin90掳3tan180掳=4

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