Question
If cos2B = sin(2B - 30°), then find the measure of 'B'.
Solution
We know that, cosA = sin(90° - A) cos2B = sin(2B - 30°) Or, sin(90° - 2B) = sin(2B - 30°) Or, 90° - 2B = 2B - 30° Or, 2B + 2B = 90° + 30° So, B = (120° / 4) = 30°
Which of the following is not a stem modification?
The organelle responsible for protein synthesis in plant cells is the:
Which of these green manuring crop is stem nodulating?
____ is quick growing green manure cum fibre crop.
The monocotyledonous plants can be distinguished from dicotyledonous plants by:
Manures are categorised into bulky and concentrated organic manure. An example of Concentrated organic manure is
Pea, gulmohur, bean, Cassia have ___ type of symmetry and hance they are ____ flowers.
The gynoecium occupies the highest position while the other parts are situated below it. Which type of flower is that?
Which of the following cucurbits is richest in iron content?
Anti nutritional factor in mustard seed is
