Solve 90^circ-2cos0^circ+sqrt{3}tan180^circ

$$90 ^ { \circ } - 2 \cos 0 ^ { \circ } + \sqrt { 3 } \tan 180 ^ { \circ }$$

Evaluate

$$88$$

Solution Steps

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

$$90-2\times 1+\sqrt{3}\tan(180)$$

Multiply 2 and 1 to get 2.

$$90-2+\sqrt{3}\tan(180)$$

Subtract 2 from 90 to get 88.

$$88+\sqrt{3}\tan(180)$$

Get the value of \tan(180) from trigonometric values table.

$$88+\sqrt{3}\times 0$$

Anything times zero gives zero.

$$88+0$$

Add 88 and 0 to get 88.

$$88$$