To find the value of the expression 2cos60°*-sin135°+tg150°, we will calculate the trigonometric functions of each angle first and then substitute the values into the expression.
Now we substitute these values into the expression:
2(0.5) -(-√2/2) + (-√3)= 1 √2/2 + (-√3)= √2/2 - √3
Therefore, the value of the expression 2cos60°*-sin135°+tg150° is √2/2 - √3.
To find the value of the expression 2cos60°*-sin135°+tg150°, we will calculate the trigonometric functions of each angle first and then substitute the values into the expression.
cos 60° = 0.5sin 135° = -√2/2tan 150° = tan(180° - 30°) = -tan(30°) = -√3Now we substitute these values into the expression:
2(0.5) -(-√2/2) + (-√3)
= 1 √2/2 + (-√3)
= √2/2 - √3
Therefore, the value of the expression 2cos60°*-sin135°+tg150° is √2/2 - √3.