Solve for x : x 3 -1=0 - Vidyadip

Question

Solve for $x : \cos \frac{x}{3}-1=0$

✓

Answer

$\cos \frac{x}{3}-1=0 $
$\cos \frac{x}{3}=1 $
$ \frac{x}{3}=0^{\circ} $
$ x=0^{\circ}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]→Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios] — all question types→MATHEMATICS STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

Write down the following product:
(2y - 3) (3y - 5)

Simplify :$\frac{22}{2 \sqrt{3}+1}+\frac{17}{2 \sqrt{3}-1}$

Given (log _{10} x=a, log _{10} y=b),If $\log _{10} P =2 a-b$, express P in terms of $x$ and $y$.

If $\tan \theta = \cot \theta $ and $0^\circ\angle \theta \angle 90^\circ,$ state the value of $\theta$

Factorise:
$100-9 p^2$

Using the standard formulae, expand:
$(9+2 x)(9-3 x)$

If one angle of a parallelogram is 90, show that each of its angles measures 90.

Write down the following product:
$(x+6)(x+2)$

Factorise:
$a^6+b^6$

Factorise$ : a^2( b + c) - (b + c)^3$