Solve 2sin30^circ+cos0^circ+3sin90^circ

$$2 \sin 30 ^ { \circ } + \cos 0 ^ { \circ } + 3 \sin 90 ^ { \circ }$$

Evaluate

$$5$$

Solution Steps

Get the value of \sin(30) from trigonometric values table.

$$2\times \frac{1}{2}+\cos(0)+3\sin(90)$$

Multiply 2 and \frac{1}{2} to get 1.

$$1+\cos(0)+3\sin(90)$$

Get the value of \cos(0) from trigonometric values table.

$$1+1+3\sin(90)$$

Add 1 and 1 to get 2.

$$2+3\sin(90)$$

Get the value of \sin(90) from trigonometric values table.

$$2+3\times 1$$

Multiply 3 and 1 to get 3.

$$2+3$$

Add 2 and 3 to get 5.

$$5$$