Question

9.2.16 , Is it correct?

In the adjacent figure ABCD is a square and ∆APB is an equilateral triangle .prove that ∆APD congurence ∆BPC .

sir i am class 12 student and i want to know the formula of mod A^-1 which u r telling in the cbse 2019 tips

• Show that (-1 square root of -3)^11 (-1-square root of -3)^11 = -2^11

1. Find the unit place digit in the expansion of (67)^761

 qus no 3 part b