Datrys (1/2)^-1+(pi+1)^0-2cos60^circ+sqrt{9}

$$( \frac { 1 } { 2 } ) ^ { - 1 } + ( \pi + 1 ) ^ { 0 } - 2 \cos 60 ^ { \circ } + \sqrt { 9 }$$

Enrhifo

$$5$$

Camau Ateb

Cyfrifo \frac{1}{2} i bŵer -1 a chael 2.

$$2+\left(\pi +1\right)^{0}-2\cos(60)+\sqrt{9}$$

Cyfrifo \pi +1 i bŵer 0 a chael 1.

$$2+1-2\cos(60)+\sqrt{9}$$

Adio 2 a 1 i gael 3.

$$3-2\cos(60)+\sqrt{9}$$

Cael gwerth \cos(60) o’r tabl gwerthoedd trigonometrig.

$$3-2\times \frac{1}{2}+\sqrt{9}$$

Lluosi 2 a \frac{1}{2} i gael 1.

$$3-1+\sqrt{9}$$

Tynnu 1 o 3 i gael 2.

$$2+\sqrt{9}$$

Cyfrifo ail isradd 9 a chael 3.

$$2+3$$

Adio 2 a 3 i gael 5.

$$5$$