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If →a and →b are unequal vectors such that (→a−→b)×[(→b+→a)×(2→a+→b)]=→a+→b, then the angle θ between →a and →b is |
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Answer» If →a and →b are unequal vectors such that (→a−→b)×[(→b+→a)×(2→a+→b)]=→a+→b, then the angle θ between →a and →b is |
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