Question

Prove the identity cosec^4 a- cosec^2a =cot^4a +tan^2a

Answer 1

Answer:

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Answer 2

Answer:

the postion of a particle along x - axis at time t is given by x=1+t-t^2 . The distance travelled by the particle in first 2 second is

1)1m 2)2m 3)2.5