ppl......i was jus. trying these probs today.....mere palle nahi pad rahe the in many of these....jus try it out....

1) if A and B are the roots of the eqn. tanx = 2x.........find the value of _-1S⁺¹sinAx . sinBx dx  (A,B>0)

2) find _-3S⁺³x⁸{x¹¹} dx (my formula edittor isnt working)

3)the pts represented by vectors a,b,c and d are coplanar and (sinA)a + (2sin2B)b + (3sin3C) -4d =0

then, find the least value of sin²A + sin²2B + sin²3C

4) find the domain of f(x) =log_e(3(pi)x - x² - 2(pi)² - sinx )

try it out and nudge if u get it......