Please help me with this :) it is due is 5 minute rewrite the expression in terms of the first power of cosine:
sin^2(x/2)cos^2(x/2)
please help me God bless!

Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Ihonestly have no clue if it's each or none.