Question

Find the number of zeros of px).
Find HCF and IM of 90 and 144 by prime factorisation method
6 In figure, AB is a 6 m high pole and Disa ladder inclined at an angle of 60
to the horizontal and reaches up to a point Dolpole, IL AD - 2.54 m, find the
length of the ladder, (Use 13 1.73)​

Answer 1

Answer:

sol:-

90 = 3× 3× 2×5.

144= 2×2×2×2×3×3

H.C.F (90,144) = 2×3

L.c.m (90,144)= 2×2×2×2×3×3×5=720.