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As it is a poly nominal in y of third degree, it has three roots, the roots being y = 1, 2 or 3
The graph is roughly sketched above
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The graph lies in 2nd and 3rd consider x?y? = -1 ⇒ x = - 1/?y?. This is the only option which admits x negative. |
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Basically, the equation describes 10 squares of sides ?2, 2?2, 3?2, ….., 10?2. Sum of the areas of the squares is 2(12 + 22 + 32 + ….102)
= 2 x 385 = 770 sq. units
Directions: Read the following information to answer the question.
Let, Lower class = x seats
Middle class = (X – 100)
Upper class = x – 100 + 100 = x
Balcony = 2x; 5x = 1,500
⇒ x = 300 Hence 2 x = 600
Directions: Read the following information to answer the question.
