vector p is (3i + 2j) and vector q is (4i + 5j). What is the magnitude of the vector we will get by cross product (p x q)
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The equation px2-17x+10=0 has two distinct roots,a=15/2b . find the value of P.. please it's urgent
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(p×q) = (3i+2j)×(4i+5j)
=> 3i(4i+5j) + 2j(4i+5j)
=> 12(i×i) + 15(i×j) + 8(j×i) + 10(j×j)
=> 12(0) + 15k + 8(-k) + 10(0)
=> 7k cap
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