Solve the Equation for Exact Solutions $\arctan x = \operatorname { arccot } \frac { 8 } { 11 }$

question 72

Multiple Choice

Solve the equation for exact solutions.
- $\arctan x = \operatorname { arccot } \frac { 8 } { 11 }$

• A) \(\left\{ \frac { 8 } { 11 } \right\}\)
• B) \(\varnothing\)
• C) \(\{ 0 \}\)
• D) \(\left\{ \frac { 11 } { 8 } \right\}\)

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Definitions:

Variable Cost

Costs that change in proportion to the level of production activity or volume, such as raw material costs and direct labor costs.

Fixed Cost

A cost that remains constant, in total, regardless of changes in the level of activity within the relevant range. If a fixed cost is expressed on a per unit basis, it varies inversely with the level of activity.

Margin of Safety Percentage

A metric that measures how much sales can drop before a business reaches its break-even point, typically expressed as a percentage.

Variable Expenses

Costs that vary directly with the level of production or business activity.