Using Calculators for Trigonometric Functions

Why is it important to set your calculator to degree mode when working with trigonometric functions?

• To make the calculator run faster

• To ensure the calculator displays results in radians

• To prevent the calculator from overheating

• To get accurate results for angles measured in degrees

What is a key feature of double-line calculators when performing trigonometric calculations?

• They only work in radian mode

• They display the input and result on separate lines

• They require manual entry of parentheses

• They cannot perform inverse trigonometric functions

When using a single-line calculator, what is the correct order of operations to calculate 14 times sine of 33 degrees?

• Enter 14, then 33, then sine

• Enter sine, then 33, then multiply by 14

• Enter 14, then sine, then 33

• Enter 33, then sine, then multiply by 14

How do you perform an inverse tangent calculation on a single-line calculator?

• Enter the fraction, then directly use the inverse tangent function

• Use the inverse tangent function, then press equals

• Enter the fraction, press equals, then use the inverse tangent function

• Use the inverse tangent function first, then enter the fraction

What should you check on your smartphone calculator before performing trigonometric calculations?

• Ensure it is in radian mode

• Ensure it is in degree mode

• Ensure it is in scientific mode

• Ensure it is in basic mode