कैसे हल करें ( d) 28 (a) 22 ( b ) 26 (c) 24 4. मान लीजिए vec a =2 hat i -3 hat j +4k और overline b =7 hat i + hat j -6k यदि vec r * vec a = vec r * vec b ,; vec r .( hat i +2 hat j +k)=-3; vec r *(2 hat i -3 hat j +k) बराबर है Let hat a =2 hat i -3 hat j +4k and overline b =7 hat i + hat j -6k If vec r * vec a = vec r * vec b .; vec r * ( hat i +2 hat j +k)=-3 then hat r .(2 hat i -3 hat j +k) is equal to ( a) 12 (b) 8

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1. Factor the equation (x + 2)(x + 3) = 0. 2. Set each factor equal to zero: x + 2 = 0 and x + 3 = 0. 3. Solve for x: x = -2 and x = -3.

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