So say selling a backpack thats used-like new and the original price is $54.00 how much should I set the price at??
2 answers:
You might be interested in
Answer:
no solution because the square root of a negative number is not a real number d=-100
If this is supposed to be
Then this can simply be reduced to
by the double angle formula for cosine
Then this can simply be reduced to
by the double angle formula for cosine