JEE Class main Answered

Please solve sir

Asked by sanjaysingh.srct | 03 Sep, 2019, 12:01: PM

Expert Answer

V e c t o r s space a with rightwards arrow on top comma space straight b with rightwards arrow on top comma space c with rightwards arrow on top space a n d space d with rightwards arrow on top space a r e space c o p l a n a r space i f space x a with rightwards arrow on top plus y straight b with rightwards arrow on top plus z c with rightwards arrow on top plus w d with rightwards arrow on top equals 0 space a n d space x plus y plus z plus w equals 0 W e space h a v e space space 3 a with rightwards arrow on top minus 2 straight b with rightwards arrow on top plus 5 c with rightwards arrow on top minus 6 d with rightwards arrow on top equals 0 H e r e comma space x equals 3 comma space y equals negative 2 comma space z equals 5 comma space w equals negative 6 x plus y plus z plus w equals 3 minus 2 plus 5 minus 6 equals 0 T h e r e f o r e comma space 3 a with rightwards arrow on top minus 2 straight b with rightwards arrow on top plus 5 c with rightwards arrow on top minus 6 d with rightwards arrow on top equals 0 space a n d space 3 minus 2 plus 5 minus 6 equals 0 H e n c e comma space v e c t o r s space a with rightwards arrow on top comma space straight b with rightwards arrow on top comma space c with rightwards arrow on top space a n d space d with rightwards arrow on top space a r e space c o p l a n a r.

Answered by Renu Varma | 04 Sep, 2019, 10:21: AM

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