Help me please this is due in like 30 mnutes

Sin(30) = 1/2;

Cos(30) = sqrt(3)/2

Tan(60) = sqrt(3)

Step-by-step explanation:

Sin(30) = opposite/hypotenuse

Sin(30) = 7/14 = 1/2

Cos(30) = adjacent/hypotenuse

Cos(30) = 7sqrt(3)/14 = root(3)/2

sqrt: square root

Tan(60) = opposite/adjacent

Tan(60) = 7sqrt(3)/7 = sqrt(3)

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.