Step-by-step explanation:
Add thel and multiply the 2
Answer:
40320 ways
Step-by-step explanation:
Given
Members = 8
Required
Number of ways they can be selected
Since, the order does not matter;
They can be selected in 8! ways


<em>Hence, there are 40320 ways which the director can select them for the concert</em>
Answer:
sinA(cosA+sinA)*cosA
Step-by-step explanation:
(sinA(2cosA+sinA-cosA))/secA
sinA(cosA+sinA)/secA
sinA(cosA+sinA)*cosA