If Δr=∣∣∣∣∣2r−1mCr1m2−12mm+1sin2(m2)sin2(m)sin2(m+1)∣ – InterviewSolution

1.	If Δr=∣∣∣∣∣2r−1mCr1m2−12mm+1sin2(m2)sin2(m)sin2(m+1)∣∣∣∣∣,(0≤r≤m),then value of m∑r=0Δr is
Answer» If $Δ_{r} = ∣ ∣∣∣ ∣ \begin{matrix} 2 r - 1 & ^{m} C_{r} & 1 m^{2} - 1 & 2^{m} & m + 1 {sin}^{2} (m^{2}) & {sin}^{2} (m) & {sin}^{2} (m + 1) \end{matrix} ∣ ∣∣∣ ∣, (0 \leq r \leq m),$ then value of $m \sum r = 0 Δ_{r}$ is

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