Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If A=`[[cosx,sinx],[sinx,-cosx]]`,and A (adj A)= `lambda [[1,0],[0,1]]`, then `lambda` is equal to - Sarthaks eConnect

If A=`[[cos x,sin x],[sin x,-cos x]]`, and A (adj A)= `lambda [[1,0],[0,1]]`, then `lambda` is equal to:

sin x cos x

-1

-2

none of these