What are the steps to solving this limit?

lim(x>0) = -5

Step-by-step explanation:

first: sin(x-π/2)= -cosx

so the equation will be :

lim(x>0) = [-6cos(ax)-1}/cosx

solve :

lim(x>0) =  [-(6cos(a(0))-1}/cos(0)

cos0=1

lim(x>0)=(-(6(1)-1)/1

lim(x>0)=-6+1/1

lim(x>0)=-5

[2, 2.5)

(2.5, 3]

step-by-step explanation:

i think its these two not sure [2, 2.5)

(2.5, 3]

b

step-by-step explanation: