WAN

Please help me with this integral problem: ʃ x^2(a^2-x^4)^2dx please help..thanks alot:)

ʃ(1-sin A)^2 cos A dA please help.i don't know how to solve this.i need your help

ʃsin y dy/ √1 + cosy please help..thanks.. that's integration of sin y dy divided by (over) square root of 1 + cosy.

the entrance fee to the zoo is $3,and to get into the gardens is $2.A ticket to get into both is $4. One day 900 people were at the zoo and 700 in the garden.If 500 people visited only the zoo,what was the total amount of money collected that day

we make 1 square with 4 matches, 2 squares with 7 matches and 3 squares with 10 matches.How many squares canwe make with 100 matches ?