Find the value of $x = \sin^2 \varphi - \cos^2 \varphi$ if $\varphi$ is $\pi / 4$ or $45^\circ$. Find the value of $x = \sin^2 \varphi - \cos^2 \varphi$ if $\varphi$ is $\pi / 4$ or $45^\circ$. A. 3 C. 1 B. 2 D. 0 Log in or register to post comments Solution Click here to… Jhun Vert Fri, 06/07/2024 - 21:12 Solution Click here to expand or collapse this section Note: sin 45° = cos 45° Log in or register to post comments
Solution Click here to… Jhun Vert Fri, 06/07/2024 - 21:12 Solution Click here to expand or collapse this section Note: sin 45° = cos 45° Log in or register to post comments
Solution Click here to…