1.

Observe the following, choose correct answer : Assertion(A): The lines barr =(2bari + barj)+s(bari + barj -bark) and barr =(bari +bark)+t(7bari - barj +bark) are coplanar. Reason (R) : Condition for the lines barr = bara + sbarb and barr = barc + tbard to be coplanar is [bara-barc barb -bard]=0

Answer»

A is TRUE, R is false
A is false, R is true
Both A, R are false
A, RARE true and R `RARR` A

Answer :D


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