9000086709 | math4u.vsb.cz

SubArea:

Trigonometric equations and inequalities

Level:

Project ID:

9000086709

Source Problem:

Accepted:

1

Clonable:

1

Easy:

0

Identify the equation which arises from the following equation using an optimal substitution.

6 \cos^{2} x + \sin x - 5 = 0

6 t^{2} - t = 1

6 t^{2} + t - 5 = 0

6 t = 5

Equation is not convenient for a substitution.