(11×21) + (12×20)+ (13×19) +....+(26×6)=?
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(11×21) + (12×20)+ (13×19) +....+(26×6)=?
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Answer:
[tex]HelloMate[/tex]
[tex] {?}^{2} \times \frac{?}{?} [/tex]
Answer:
874
Step-by-step explanation:
231 + 240 + 247 + 156 = 874