Solve sqrt{4}-tan45^circ-(1-sqrt{2})^0

$$\sqrt { 4 } - \tan 45 ^ { \circ } - ( 1 - \sqrt { 2 } ) ^ { 0 }$$

Evaluate

$$0$$

Solution Steps

Calculate the square root of 4 and get 2.

$$2-\tan(45)-\left(1-\sqrt{2}\right)^{0}$$

Get the value of \tan(45) from trigonometric values table.

$$2-1-\left(1-\sqrt{2}\right)^{0}$$

Subtract 1 from 2 to get 1.

$$1-\left(1-\sqrt{2}\right)^{0}$$

Calculate 1-\sqrt{2} to the power of 0 and get 1.

$$1-1$$

Subtract 1 from 1 to get 0.

$$0$$