Question

Sin 60 cos 30 + tg(-45)=

Answer 1

Ответ:

-0.25

Пошаговое объяснение

синус 60= корень из 3 /2, косинус 30 =корень из 3 /2,а тангенс (-45)=-1

Answer 2

To calculate the value of the expression, let's first find the exact values of sine, cosine, and tangent for the given angles:

• Sin 60° = √3/2
• Cos 30° = √3/2
• Tan (-45°) = -1

Now, substitute these values into the expression:

Sin 60° * Cos 30° + Tan (-45°) = (√3/2) * (√3/2) + (-1) = (3/4) - 1 = 3/4 - 4/4 = -1/4

So, the value of the expression is -1/4.