Question Details

What is the value of $\cos (x + y) - \sin (x - y) + \tan (2 z)$ ?

Options

A

$\sin x \cdot \sin y + \frac{2 \tan z}{1 - \tan^{2} z}$

B

$\cos x \cdot \cos y - \sin x \cdot \sin y - \sin x \cdot \cos y + \cos x \cdot \sin y + \frac{2 \tan z}{1 - \tan^{2} z}$

C

$\cos x \cdot \cos y - \sin x \cdot \sin y - \cos x \cdot \sin y + \frac{\tan z}{1 - \tan^{2} z}$

D

$\cos x \cdot \cos y - \sin x \cdot \sin y - \sin x \cdot \cos y - \cos x \cdot \sin y + \frac{2 \tan z}{1 - \tan^{2} z}$

Show Answer

Access expert-curated educational resources and study materialsâ€”completely free.

Create, conduct, and manage professional online assessments with Mindyard. Perfect for teachers and institutes.

Discover more resources

You may also like