Question

(८) यदि दो सदिश = 3i+5j-7k तथा B=5i-7kहो तो A+B
मान ज्ञात कीजिए।
का​

Answer 1

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A = 3i + 5j - 7k

B = 5i - 7k.

|A + B| = 8i + 5j - 14k

Answer 2

Answer:

Explanation:

(3+5)i +(5+0)j + (-7-7)k

=8i + 5j - 14k