we are given
trinomial as

now, we can factor it



so, option-C and D ..............Answer
Answer:
It can never be a prime number.
Step-by-step explanation:
This is because the product of the two prime numbers are divisible by those two numbers, therefore going against the definition of a prime number. For example 3 and 5 are prime numbers and their product is 15. 15 can be divided by 3 and 5 so it is not a prime number.
Hope this helps.
Answer: 3
Step-by-step explanation:
The sine of an angle is equal to the cosine of its complement, so

Answer:
5
Step-by-step explanation:
3+5=8