Some basic formulas of math and science for class 7.
Today I am going to talk about some interesting formulas of class 7 .
Here a few formulas about math and science. So, please read and share the post for increasing the knowledge of science and math.
Math formulas:
1. (a-b)^2 = a^2 - 2ab + b^2 |||||| 1. (a-b)^2 = (a+b)^2 - 4ab
2. (a+b)^2 = a^2 +2ab + b^2 |||||| 2. (a+b)^2 = (a-b)^2 + 4ab
3. a^2 + b^2 = (a+b)^2 - 2ab
4. a^2 + b^2 = (a-b)^2 + 2ab
5. 4ab = {(a+b)^2}-{(a-b)^2}
6. a^2 + b^2 = {(a+b)^2} + {(a-b)^2}
Physics formulas:
1. F= G. Mm/d^2 {G= 6.67 x 10^-11 N/m^2}
2. P= hdg {where h=height, d= density, g= gravitational acceleration}
3. W= mg
4. Q= K. (q1 x q2)/r^2
It is a very short post. I hope it will be very helpful to everyone and every student.
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