Is the given equation an identity?cos⁡2x(1+tan⁡2x)−1=0\$$cos^2x$$\left(1+\$$tan^2x$$\right)-1=0cos2x(1+tan2x)−1=0

Introduction to Trigonometric Identities

6. Trigonometric Identities and More Equations / Introduction to Trigonometric Identities / Problem 6

Problem 6

Is the given equation an identity?
$$\cos$^2x$\left$(1+$\tan$^2x$\right$)-1=0$

Yes