Question

Q.3 sin 30° + cos45°+ tan 180° =
a) 1+52
b) 1.2
c) 1+2
a) 1-52​

Answer 1

Answer:

$\large\boxed{3\sin30^{\circ}+\cos45^{\circ}+\tan180^{\circ}=\boxed{\frac{3+\sqrt{2} }{2} }}}}}$

Step-by-step explanation:

To solve this problem, first you have to use sin, cos, and tan the numbers from left to right.

Given:

3sin(30°)+=cos(45°)+tan(180°)

Solutions:

First, you have to use the following trivial identify.

$\displaystyle \sin(30^{\circ})=\frac{1}{2}$

$\displaystyle \cos(45^{\circ}})=\frac{\sqrt{2} }{2}$

$\displaystyle \tan(180^{\circ}})=0$

$\displaystyle 3*\frac{1}{2}+\frac{\sqrt{2} }{2}+0$

Solve.

$\displaystyle 3*\frac{1}{2}=\frac{3}{2}$

$\displaystyle \frac{3}{2}+\frac{\sqrt{2} }{2}+0$

Then, you combined the fractions from left to right.

$\displaystyle \frac{3+\sqrt{2} }{2}+0=\boxed{\frac{3+\sqrt{2} }{2} }$

Therefore, the correct answer is 3+√2/2.

Answer 2

AnswEr :

• Sin 30° = $\large\frac{1}{2}$
• Cos 45° = $\large\frac{\sqrt{2}}{2}$
• Tan 180° = 0

A.T.Q

$\longrightarrow \sin(30) + \cos(45) + \tan(180)$

$\large \longrightarrow \frac{1}{2} + \frac{ \sqrt{2} }{2} + 0$

$\large \longrightarrow \frac{(1 + \sqrt{2} + 0) }{2}$

$\huge\longrightarrow \frac{(1 + \sqrt{2}) }{2}$

$\huge{\red{\ddot{\smile}}}$