Question

Cos a × tg a -2sin a=

Answer 1

=cosa*sina/cosa -2sina=sina-2sina=-sina

Answer 2

Смотрите решение в прикреплённом файле.

Answer 3

The expression you've provided is:

cos(a) × tan(a) - 2sin(a)

To simplify this expression, we can use trigonometric identities to rewrite the terms in a different form.

1. Rewrite tan(a) as sin(a) / cos(a):

cos(a) × (sin(a) / cos(a)) - 2sin(a)

2. Simplify by canceling out the common factors of cos(a):

sin(a) - 2sin(a)

3. Combine like terms:

• sin(a)

Therefore, the simplified form of the expression is -sin(a).