The Point P(x, Y) on the Unit Circle That Corresponds $\left( \frac { \sqrt { 21 } } { 5 } , \frac { 2 } { 5 } \right) \quad$

question 219

Multiple Choice

The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the values of the indicated
trigonometric function at t.
- $\left( \frac { \sqrt { 21 } } { 5 } , \frac { 2 } { 5 } \right) \quad$ Find sec t.

• A) \(\frac { 5 \sqrt { 21 } } { 21 }\)
• B) \(\frac { 5 } { 2 }\)
• C) \(\frac { \sqrt { 21 } } { 2 }\)
• D) \(\frac { 2 \sqrt { 21 } } { 21 }\)

Understanding the impact of free trade on consumer surplus, producer surplus, and total surplus.

Analyzing the effects of a tariff on market surplus and deadweight loss.

Calculating equilibrium price and quantity in a market without trade.

Identifying the changes in welfare measures (surplus) before and after the imposition of a tariff.