Question
_________ plants are characterized by seeds having two
cotyledons, reticulate venations in leaves, and tetramerous or pentamerous flowers.Solution
The dicotyledons are characterized by seeds having two cotyledons, reticulate venations in leaves, and tetramerous or pentamerous flowers, i.e., having four or five members in each floral whorls.
If √y + (1/√y) = 10, then find the value of y + (1/y).

(x + 4) 2 + (y – 1) 2 + (z + 2) 2 = 0, then find the value of 2x - 3y + z.
If, 3x + 2y = 15, and 2xy = 12, and 3x > 2y, then find the value of 27x³ – 8y³.
If (10 a³ + 4b³): (11a³ — 15b³) = 7:5, then (3a + 5b): (9a - 2b) = ?
If [x + (1/x)] = 3, find [x2 + (1/x2)].
If a + b + c + d = 4, then the value of
If p = 40 - q - r and pq + r(q + p) = 432, then find the value of (p² + q² + r²).
- If x² - 2x + 1 = 0, then find the value of (x² + x⁻²)(x³ + x⁻³).