MCQ
જો $u = \int_{}^{} {{e^{ax}}\cos bx\;dx} $ અને $v = \int_{}^{} {{e^{ax}}\sin bx\;dx} $, તો $({a^2} + {b^2})({u^2} + {v^2}) = $
- A$2{e^{ax}}$
- B$({a^2} + {b^2}){e^{2ax}}$
- ✓${e^{2ax}}$
- D$({a^2} - {b^2}){e^{2ax}}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$f(x)=\left\{\begin{array}{ll}-55 x, & \text { if } x<-5 \\ 2 x^{3}-3 x^{2}-120 x, & \text { if }-5 \leq x \leq 4 \\ 2 x^{3}-3 x^{2}-36 x-336, & \text { if } x>4\end{array}\right.$
જો $A=\{ x \in R : f$ એ વધતુ વિધેય છે $\},$ તો $A = ......$