If `|veca|=2, |vecb|=1` and `veca.vecb=1` then find the value of `(3veca-5vecb).(2veca+7vecb)`

If two vectors veca and vecb are such that : |veca|=2,|vecb|=1 and veca*vecb=1 , then find the value of (3veca-5vecb)*(2veca+7vecb) .

Evaluate: (3veca-5vecb).(2veca+7vecb)

Evaluate (3veca-5vecb).(2veca+7vecb)

Evaluate: (3veca-5vecb).(2veca+7vecb)

If two vectors veca and vecb are such that |\veca|=3,|\vecb|=2 and veca.vecb=4 then find the value of (3veca-4vecb).(2veca+5vecb) .

If |veca|=2, |vecb|=5 and |vecaxxvecb|=8 then find the value of veca.vecb

If |veca|=2, |vecb|=5 and |vecaxxvecb|=8 then find the value of veca.vecb

If |veca|=2, |vecb|=5 and |vecaxxvecb|=8 then find the value of veca.vecb

If |veca|=|vecb|=|veca+vecb|=1 then find the value of |veca-vecb|

If |veca|=|vecb|=|veca+vecb|=1 then find the value of |veca-vecb|