Evaluate limitsIf the this is question in paper ask what can i give answer give me feedback fastly plzz i didnt have time

You can break the numerator(N) as ( 5^x-1)(4^x-1) and in the denominator(D) by applying cosC -cord formula you will get denominator as 2sin3x.sinx And now by applying limit formula for (a^x-1)/x =ln(a) and for (sinx)/x =1 by multiplying and dividing with suitable quantities in your N and D You will get answer as 1/6 ln(5). ln(4)