Go to question cove its way better​

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

Find cot x if sin x cot x csc x = √2