Question

Помогите решить математику! Очень срочно!! 1)Sin-(60°)+cos(-45°)-tg(-180°) 2)½cos-(-Пи/4)+3/2sin(-Пи/6)-√2/4 Заранее спасибо

Answer 1

Надеюсь у тебя правильное условие, а то есть сомнения

Answer 2

Solution to the Math Problem

Let's solve the given mathematical expressions step by step:

1) sin(60°) + cos(-45°) - tg(-180°)

To solve this expression, we need to evaluate the trigonometric functions at the given angles.

- The sine of 60° is equal to 0.866. - The cosine of -45° is equal to 0.707. - The tangent of -180° is equal to 0.

Now, let's substitute these values into the expression:

sin(60°) + cos(-45°) - tg(-180°) = 0.866 + 0.707 - 0 = 1.573

Therefore, the value of the expression is 1.573.

2) ½cos(-π/4) + 3/2sin(-π/6) - √2/4

Similarly, we need to evaluate the trigonometric functions at the given angles.

- The cosine of -π/4 is equal to 0.707. - The sine of -π/6 is equal to -0.5.

Now, let's substitute these values into the expression:

½cos(-π/4) + 3/2sin(-π/6) - √2/4 = ½(0.707) + 3/2(-0.5) - √2/4

Simplifying further:

= 0.353 - 0.75 - 0.354

= -0.751

Therefore, the value of the expression is -0.751.

I hope this helps! Let me know if you have any further questions.