Question

48. @ Show that the magnitude of Ax B and area of a par-
allelogram of sides A and B are equal. (ii) Determine
the angle between A = 2i-2j+kand B = 3i+j-4.
(iii) If à = i+4j+ k and B = 3i-5j+k, find the unit
vector along any vector parallel to the resultant of Ă
and B. [HS(XI) '07] [ (ii) 90°, (iii)
4i/√21-1j/√21+2k/√21]​

Answer 1

Explanation:

a reaction in which a compound breaks down into two or more simpler substances. The general form of a decomposition reaction is: AB→A+B. Most decomposition reactions require an input of energy in the form of heat, light, or electricity.

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