(-8 3 )= _________. - Vidyadip

Question

$\cos \left(-\frac{8 \pi}{3}\right)=$ _________.

✓

Answer

$-\frac{1}{2}$

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 "Fill In The Blanks[1 Marks ]" from PART - 1 CH - 3 Trigonometric Functions→PART - 1 CH - 3 Trigonometric Functions — all question types→MATHS STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Fill in the blanks.
If $-\frac{3}{4}\text{x}\leq-3,$ then $\text{x}.......4.$

The standard deviation of a data is _________ of any change in orgin, but is _________ on the change of scale.

$\frac{d}{d x} x^n=$ __________.

$a_1, a_2, a_3$, __________ is a sequence, then the sum expressed as $a_1+a_2+a_3+$.......... is called ___________

The number of terms in the expansion of (x + y + z)ⁿ __________.
[Hint: (x + y + z)ⁿ = [x + (y + z)]ⁿ]

Fill in the blank.
The equation of the ellipse having foci (0, 1), (0, -1) and minor axis of length 1 is _____________.

The range of function $f$ is the set of __________ of $f$.

If $\sin\text{x}+\cos\text{x}=\text{a},$ then,

$\sin^6\text{x}+\cos^6\text{x}=$ _______
$|\sin\text{x}-\cos\text{x}|=$ _______.

A hyperbola is the set of all points in a plane, the differernce of whose distances from two fixed points in the plane is a _______________

$\frac{d}{d x}(\sin x)=$ __________.