Calculator Operations and Functions

This video tutorial covers how to evaluate mathematical expressions using a free online graphing calculator. It explains the importance of radian mode, demonstrates the evaluation of various expressions including arithmetic, exponents, square and cube roots, trigonometric, and logarithmic functions. The tutorial also highlights common mistakes and provides tips for correct input. Additional resources are available in the help menu.

What mode is the calculator always in, and what must you do if your expression uses degrees?

• Degree mode; convert to radians

• Radian mode; convert to degrees

• Radian mode; convert to radians

• Degree mode; no conversion needed

How do you enter a multiplication operation in the calculator?

• Press Ctrl + 8

• Press Shift + 8

• Press Alt + 9

• Press Shift + 9

What is the result of the expression 'two plus three times five'?

• 17

• 20

• 15

• 10

What is a common mistake when entering the expression '16 raised to the power of three fourths'?

• Entering 16 exponent 3 divided by 4

• Entering 16 exponent 4 divided by 3

• Entering 16 exponent 4 times 3

• Entering 16 exponent 3 times 4

How do you enter a cube root in the calculator?

• Type R-O-O-T and enter only the radicand

• Type C-U-B-E and enter the radicand

• Type R-O-O-T and enter the index and radicand

• Type S-Q-R-T and enter the radicand

What is the correct way to enter the absolute value of negative seven?

• Type A-B-S and enter 7 in brackets

• Type A-B-S and enter 7

• Type A-B-S and enter negative 7 in brackets

• Type A-B-S and enter negative 7

How do you enter the expression 'three cosine pi' in the calculator?

• Enter 3 cos(pi)

• Enter 3 cosine(pi) + 2

• Enter 3 cosine(pi)

• Enter 3 cos(pi) + 2

What is the result of the expression 'log base two of eight plus pi'?

• 10

• 5

• 3

• 8

What is the exact value of the inverse sine of the square root of three divided by two?

• Pi divided by three

• Pi divided by two

• Pi divided by four

• Pi divided by six

Where can you find additional help and notes for the calculator?

• In the Help menu in the upper right-hand corner

• In the lower left-hand corner

• In the middle of the screen

• In the settings menu