Question

plzzz give me scholarship hard question of class 8 give 10 question without answer but it have very difficult


okkkkkkk..... plzz ans. urgent​

Answer 1

1.WHICH WAVELENGTH OF LIGHT CONSISTS OF LEAST AMOUNT OF ENERGY

2.FIND THE VALUE OF X+Y/X-Y+X-Y/X+Y-2(X²+Y²)/X²-Y²

3.1/2(A+B)(A²+B²)+1/2(A-B)(A²-B²)

4.[1/1+a+2a/1-a²]×(a²+4a-5/a²+10a+25)

5.