Final Answer
false
Step-by-step Solution
Problem to solve:
$\cos\left(135\right)=4\cos\left(\right)$
Specify the solving method
1
The cosine of $135$ equals $-\frac{\sqrt{2}}{2}$
$-\frac{\sqrt{2}}{2}=4\cos\left(\right)$
Learn how to solve trigonometric equations problems step by step online.
$-\frac{\sqrt{2}}{2}=4\cos\left(\right)$
Learn how to solve trigonometric equations problems step by step online. Solve the equation cos(135)=4cos(). The cosine of 135 equals -\frac{\sqrt{2}}{2}. The cosine of 315 equals \frac{\sqrt{2}}{2}. Multiply -3 times \frac{\sqrt{2}}{2}. Subtract the values 45 and -2.121321.
Final Answer
false