91Ó°ÊÓ

Assume a string object has been defined as follows: string description; A) Write a cin statement that reads in a one-word string. B) Write a statement that reads in a string that can contain multiple words separated by blanks.

Write \(\mathrm{C}++\) expressions for the following algebraic expressions: $$\begin{array}{l} a=12 x \\ z=5 x+14 y+6 k \\ y=x^{4} \\ g=\frac{b+12}{4 k} \\ c=\frac{a^{3}}{b^{2} k^{4}} \end{array}$$

Assume a program has the following variable definitions: int \(a, b=2\) float \(c=4.2\) and the following statement: \(a=b \star c\) What value will be stored in a? A) 8.4 B) 8 C) 0 D) None of the above

Write a multiple assignment statement that can be used instead of the following group of assignment statements: \\[ \begin{array}{l} \text { east }=1 ; \\ \text { west }=1 \\ \text { north }=1 \\ \text { south }=1 \end{array} \\]

Write a cout statement so the variable divsales is displayed in a field of 8 spaces, in fixed point notation, with a precision of 2 decimal places. The decimal point should always be displayed.

Write a cout statement so the variable totalAge is displayed in a field of 12 spaces, in fixed point notation, with a precision of 4 decimal places.

Write a cout statement so the variable population is displayed in a field of 12 spaces, left-justified, with a precision of 8 decimal places. The decimal point should always be displayed.

The __________ library function returns the cosine of an angle.

The __________ library function returns the sine of an angle.

The __________ library function returns the tangent of an angle.