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• Questions no.9

in the last step where did the n go of the denominator pls tell

• Example 14, another way of doing it...

Maths class10 ncert

if sin(a-b)=1÷2and cos(a+b)=1÷2,

D is a point on side AB .E and C are two points on the base BL of ∆ABL such that DE||AC and DC||AL.If BE=4 cm EC= 2 cm then find the length of CL..

In exercise 14:6 sum no 5 how to make 60 degree angle?

• How to make 60 degree  angle