Maths ncert solution of class9
Question
Maths
April 16, 2018, 12:07 a.m.
Answer
In a survey of 200 students of a school ,it was found that 120study mathematics,90study physics and 70study chemistry ,40study maths and physics,30study physics and chemistry,50study chemistry and maths and 20none of these subjects.find the number of student who study all three subjects.
- #1. Let f: N → Z be defined by the two-part rule f(n) = n/2, if n is even
−(n + 1)/2, if n is odd.
Determine whether f is one-to-one.
Why we can't calculate circumference and diameter accurately please explain it clearly
Maths
April 15, 2018, 3:23 p.m.
Answer
Sir,
I want answer to the question. Where only the sides is given and diagonal dimension is not given.
Find the area of the quadrilateral PQRS, if PQ= 12; QR = 6;RS= 7; QR9.
P.Sundar
Maths
April 15, 2018, 2:42 p.m.
Answer
A field is in shape of a trapezium whose parallel side are 25m and 10 m the non parallel side are 14m and 14m find the area of the field