- Home
- Standard 11
- Mathematics
3.Trigonometrical Ratios, Functions and Identities
easy
यदि $\sin x = \frac{{ - 24}}{{25}},$ तब $\tan \, x$ का मान होगा
A
$\frac{{24}}{{25}}$
B
$\frac{{ - 24}}{7}$
C
$\frac{{25}}{{24}}$
D
इनमें से कोई नहीं
Solution
(b) $\cos x = \sqrt {1 – {{\sin }^2}x} $
$= \sqrt {1 – {{\left( {\frac{{ – 24}}{{25}}} \right)}^2}} = \frac{7}{{25}}$
$ \Rightarrow \tan x = \frac{{\sin x}}{{\cos x}} = \frac{{ – 24}}{7}$.
Standard 11
Mathematics
