Which one does not belong to the group?
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What is the value of [(cos 3θ + 2cos 5θ + cos 7θ)÷(cos θ + 2cos 3θ + cos 5θ)] + sin 2θ tan 3θ?
If (x + y)/z = 2, then what is the value of [y/(y – z)] + [x/(x – z)]?
Simplify 11.9983 = ?
What is the sum of the first 11 terms of an arithmetic progression if the 4th term is 11 and the 7th term is -4?
The LCM of 48 and 54 is
Simple interest on a sum of Rs 6800 for 18 months is Rs 2244. What is the rate (in percentage) of interest per annum?