Question

Сosa*(1+cos^-1a+tga) (1-cos^-1a+tga)

Answer 1

Ответ:

2sin(a)

Объяснение:

Answer 2

The expression you've provided is:

Cosa * (1 + cos^(-1)a + tga) * (1 - cos^(-1)a + tga)

To simplify this expression, we can start by simplifying the terms involving the inverse trigonometric functions, specifically cos^(-1)a. The inverse cosine function, cos^(-1)a (also denoted as arccos(a)), returns the angle whose cosine is a. Therefore, we can rewrite the expression as:

Cosa * (1 + arccos(a) + tga) * (1 - arccos(a) + tga)

Next, we can distribute the terms within the parentheses:

Cosa * (1 - arccos(a) + tga + arccos(a) - (arccos(a))^2 + tga * arccos(a))

Simplifying further:

Cosa * (2 + 2tga - (arccos(a))^2 + tga * arccos(a))

This is the simplified form of the given expression.