A) Factorise x^(-12)-1
B) find the value of a and b : 7 3√5/3 √5 - 7-3√5/3-√5
C) if x=√3-√2/√3 √2 and y=√3 √2/√3-√2 find the value of x^2 xy y^2
Question
sir mujhe video show nhi ho rha hai maths ke kisi bhi solution ka mujhe video dekhn hai hai so wht can i do now?
1. Verify (A-B) X C = (A X C) – (BXC) to the following A= {1,2,3 } B = { 3,4,5 } C = { 5,6,7 }
3rd
What is meant by power of a lens? You have three lenses L1, L2 and L3 of powers +10D, +5D and -10D respectively. State the nature and focal length of each lens. Explain which of the three lenses will form a virtual and magnified image of an object placed at 15 cm from the lens. Draw the ray diagram in support of your answer. 12.
Maths
Feb. 15, 2019, 10:42 a.m.
Answer
