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chinnu

Questions (7)

The average speed of an express train is 20km/hour more than the average speed of a passenger train .To cover a distance of
1. 1 answer
2. 674 views
the length of the diagonals of a rhombus are 24cm and 32cm. the perimeter of the rhombus is(A) 9cm (B) 128cm (C) 80cm (D) 56cm
1. 3 answers
2. 1,588 views
if sin A + sin^2 A = 1, then the value of cos^A + cos^4 A is(A) 2 (B) 1 (C) -2 (D) 0
1. 1 answer
2. 466 views
find the mode of the fdllowing dataclass - 0-20 20-40 40-60 60-80 frequency -15 6 18 10 plz explain this sum thank you
1. 1 answer
2. 374 views
sin (60 degrees + theta)-cos(30 degrees- theta)is equal to (A)2 cos theta (B)2 sin theta (C)theta (D)1 could u plz explain this
1. 1 answer
2. 738 views
if theta = 45, the value of cosec ^ 2 theta is ?
1. 1 answer
2. 432 views
3)If the random variable T is the time to failure of a commercial product and the values of its probability density and
1. 0 answers
2. 741 views