MathematicsMedium45×since 2004Q5674The value of 36(4cos29∘−1)(4cos227∘−1)(4cos281∘−1)(4cos2243∘−1)36\left(4 \cos ^{2} 9^{\circ}-1\right)\left(4 \cos ^{2} 27^{\circ}-1\right)\left(4 \cos ^{2} 81^{\circ}-1\right)\left(4 \cos ^{2} 243^{\circ}-1\right)36(4cos29∘−1)(4cos227∘−1)(4cos281∘−1)(4cos2243∘−1) is :A18B36C54D27Check answerSkip