`(a-2b)^(12)` में `a^(5)b^(7)` का

Evaluate (3cos^2 30^@ + sec^2 30^@ + 2 cos 0^@ + 3 sin 90^@ - tan^2 60^@) . (A) 5frac(7)(12) (B) 7frac(5)(12) (C ) 5frac(12)(7) (D) 12frac(5)(7)

If A=[(-1,2),(2,-1)], B=[(5),(7)] and AX=B then X is equal to -

If a : b = 2 : 3, then (5a - 2b) : (5a + 2b) is equal to: यदि a : b = 2 : 3 है, तो (5a - 2b) : (5a + 2b) का मान ज्ञात करें |

Events A and B are such that P(A) = (1)/(2) , P (B) = (7)/(12) P (not A or not B) = (1)/(5) . State whether A and B are independent ?

Find the coefficient of a^(5)b^(7) in (a-2b)^(12)

If 3a = 27b = 81c and abc = 144, then the value of 12(1/a+1/(2b)+1/(5c)) is : यदि 3a = 27b = 81c है तथा abc =144 है, तो 12(1/a+1/(2b)+1/(5c)) का मान क्या होगा ?