Question

If Repetition is allowed, how many 3 digit even number can be formed from (3,4,5,6,9)

In probability(class 12) example 6 event E= number 4 appears at least once but why i should not take event E=sum of the nos. appears to be 6.

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