Math Chapter Wise question with answer

Q01 The directional derivative of xy yz zx φ = + + φ = + + φ = + + φ = + + at (1,1,1) in the direction of the vector ˆ... English · UP PGT-2016 (02-02-2019) Q02 What will be the directional derivative of (())) 2 3,, f x y z xy yz = + = + at the point (2, –1, 1) in the directi... English · PGT 2013 Q03 If ˆ ˆ ˆ r xi yj zk and a is a constant vector, then curl r a English · (GIC) PGT, 2015 Q04 If a and b are constant vectors, then (((()))) r ab ∇ is equal to English · PGT 2005 LT 2018 Q05 If = r a − + t t e be ω, where, a b are constant vectors, then d r r dt ω − 2 is equal to English · PGT 2009 Q06 The value of div () × × a r a where a is a constant vector is English · PGT 2009