$= \frac{\sin(2 \alpha ) + \cos(2 \alpha ) - \cos(6 \alpha ) }{ \sin(4 \alpha ) + 2 { \sin }^{2} \alpha - 1} \\ = \frac{ \sin( - 270) + \cos( - 270) - \cos( - 810) }{ \sin( - 540) + 2 { \sin }^{2}( - 135) - 1 } \\ = \frac{1}{ - 2} \\ = - 0.5$

5 0

2 years ago

Here are six numbers-4, -2, -1, 5, 6, 8Arrange the card into three pairs with the same total

Usimov [2.4K]

ANSWER 8-4 5-1 6-2

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A pizza has a circumference of 12 inches. Find the exact area of the pizza. Use 13.4 for pi.

denis-greek [22]

Answer: 113.04

Step-by-step explanation:

4 0

3 years ago