• arctan(-x) = -arctan(x), for all x R
• tan (arctan x) = x, for all real numbers x
• arctan (tan x) = x, for x (-/2, /2)
• arctan(1/x) = /2 - arctan(x) = arccot(x), if x > 0 or, arctan(1/x) = - /2 - arctan(x) = arccot(x) - , if x < 0
• sin(arctan x) = x / (1 + x²)
• cos(arctan x) = 1 / (1 + x²)
• arctan(x) = 2arctan(x1+1+x2)(1+1+2).
• arctan(x) = x01z2+1dz

1.shed light on the Non sister chromatids of bivalents and then relate them to the Crossing over events

2.separate the Chromosomes theoretically

3. elaborate on the Tubulin subject to the Spindle fibers

4.what is the fate level for the Zygotene during meiosis

5. Synthesis of RNA and proteins take place in?commend

6.show the Spindle result from the Centrioles

7. . Amyloplasts are articles storing?explain

8.what do you know about cell drinking as illustrated by the Pinocytosis

9. Which other term can be used to describe the mitoplast?

10.locate the demography of the Digestive enzymes