Question

1/2cos a - sin (П/6+a)

Answer 1

Ответ:

вот) должно быть правильно

Объяснение:

;)

Answer 2

To simplify the expression 1/2cos(a) - sin(π/6 + a), we can start by using the trigonometric identities:

cos(π/6) = √3/2 sin(π/6) = 1/2

Now let's simplify the expression step by step:

1/2cos(a) - sin(π/6 + a) = 1/2cos(a) - [sin(π/6)cos(a) + cos(π/6)sin(a)] (Using the sum-of-angles formula for sin) = 1/2cos(a) - [(1/2)cos(a) + (√3/2)sin(a)] (Substituting the values of sin(π/6) and cos(π/6)) = 1/2cos(a) - 1/2cos(a) - (√3/2)sin(a) = - (√3/2)sin(a)

So, 1/2cos(a) - sin(π/6 + a) simplifies to - (√3/2)sin(a).