JEE Main 20238 Apr, Evening shiftMathematicsMediumTrigonometry118× since 2002The 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 :AOption A. 18BOption B. 36COption C. 54DOption D. 27CheckSkip · show solution
