i need the answer of question 12 with explanation
cbse sample paper 2019
Lim x tends to 0 (1-cos2x/x(e^5x-1))
lucy necklace contains 15 spherical glass beads of radius.8mm and 12 spherical glass beads of radius 5 mm. Find the total volume of glass in Lucy's necklace.Give your answer in cubic cm
Maths