Question

Question 9
al if LA = 30° then show that
) sin? A + cos2 A=1
1 + tan? A = sec2 A
ii) 1 + cot? A = cosec2 A
o in the given figure, P, Q and Rare the midpoints
of the sides BC, CA and AB respectively of A ABC.
FAB = 8 cm, BC = 5 cm and CA = 7 cm,
find the perimeter of A POR.
of three angles of a triangle are p + 15°, 2p - 20° and p-15
Find the angles.​

Answer 1

The main difference between red brown and green algae is that red algae contain chlorophyll a, chlorophyll d, and phycoerythrin, while brown algae contain chlorophyll a, chlorophyll c, and fucoxanthin and green algae contain chlorophyll a, chlorophyll b, and xanthophylls.