Knockout BITSAT 2022
An exhaustive program for the complete preparation of Physics Chemistry Mathematics English & Logical Reasoning of BITSAT exam, Adaptive Time Table, Chapterwise Questions, Concepts Flashcards for Quick and Effective Revision, Unlimited Chapter wise Subject wise and Full mock test for enhancing Speed & Accuracy,.
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With the help of 2 properties of cube roots of unity, we can solve this question.
Property 1,
Property 2,
Now we have to find the value of (1+
-
)(1-
+
)
Using property 2,
Now use property 1,
Option (1) is correct