area à (a ne sin ar ee sin te C

ex = 10. \ e% cos? x dx — —— (4? cos? æ —L 2a sin x cos æ L 2) 1 C. ere Al 1 fe È ie elt à AA. SIN æ dx = ———— (a? sin? x — 2a sin x cos æ - 2) + C. a (a° +4)

. ax s FA 12. | enr sin æ cos æ d — 2" (RSIN2Y— 200828), &

æ dx 13. — — x Cot Il, si ; (ae æ cotæ +1, sin æ + C cos æ :

aa. (snrade = 3 sin* x + = Asia +24) +c D sin* æ dx sin? x 25. = — —— C te = ins +L (T4 +5)+ 16 Pt (1 + 2 sin? x) + C " Jsiniæ 3sinfx £ 4 2 13. (ir eue tre He pe cos + C.

= Les de L G.

RE sntgcoset 1 RTRUE NE ve AC ar , 0 of LUS GUAT 276 19 si 0 eu to cost] (aan Leu + Feoé a [4e 2 2 2 Ait 2 2