Question

Sin 130°×cos 50° × tg80° ×cos 150°

Answer 1

Тригонометрический онлайн калькулятор говорит, что это будет

0.7660444431 * 0.6427876097 * 5.6712818196 * -0.8660254038 = -2.41842889992

Answer 2

To calculate the value of the expression, first, you need to find the trigonometric values for each of the angles given. Here are the values for each trigonometric function:

sin(130°) ≈ 0.766 cos(50°) ≈ 0.642 tan(80°) ≈ 5.671 cos(150°) ≈ -0.866

Now, let's evaluate the expression:

sin(130°) × cos(50°) × tan(80°) × cos(150°)

0.766 × 0.642 × 5.671 × (-0.866)

Now, multiply the values:

≈ -2.471

So, the value of the expression is approximately -2.471.