Exalbuminous ...

Exalbuminous Seed

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An example of non-endospermic seeds

An example of non-endospermic seeds

Wheat grain is an exalbuminous monocot seed.

__________ cotyledon store food and become thick and fleshy.

Give any two examples each of endospermic (albuminous) seeds, and non-endospermic (exalbuminous) seeds.

Q. If

| 2 sin θ - cosec θ | \geq 1

, then complete set of values of

θ

is
(where

n \in Z

)

Q. The quadratic equation

(cos p - 1) x^{2} + (cos p) x + sin p = 0

(where

x \in R

) has real roots if

p

lies in

Q. All possible values of

θ \in [0, 2 π]

for which

sin 2 θ + tan 2 θ > 0

lie in :

$(0, \frac{π}{4}) \cup (\frac{π}{2}, \frac{3 π}{4}) \cup (π, \frac{5 π}{4}) \cup (\frac{3 π}{2}, \frac{7 π}{4})$
$(0, \frac{π}{2}) \cup (π, \frac{3 π}{2})$
$(0, \frac{π}{2}) \cup (\frac{π}{2}, \frac{3 π}{4}) \cup (π, \frac{7 π}{6})$
$(0, \frac{π}{4}) \cup (\frac{π}{2}, \frac{3 π}{4}) \cup (\frac{3 π}{2}, \frac{11 π}{6})$

Q. If

f (x) = sin x + cos x

, then the number of solution of

f (x) = [f (\frac{π}{10})]

, for

x \in (0, 4 π)

is
(where [.] represent greatest integer function)

Q. For

x \in (- \frac{π}{2}, \frac{π}{2}),

find the solution set of the inequality

| 4 sin x - 1 | < \sqrt{5} .

Given:

sin \frac{π}{10} = \frac{\sqrt{5} + 1}{4}