Find the value of x, if 351−2x=12527
Finding the value of x:
351−2x=12527⇒35121−2x=5333∵an=a1n⇒35121−2x=35−3∵a-n=1an⇒3512−2x2=35−3∵amn=amn⇒12−2x2=−3Basearesame,soequatingpowers⇒1−2x2=−3⇒1−2x=−3×2⇒1−2x=−6⇒-2x=−6−1⇒2x=7⇒x=72⇒x=312
Hence,the value of x=312
Let f(x) be a function defined by f(x)={3|x|+2x,x≠00,x=0 Show that limx→0 f(x)does not exist.
The minimum value of 27cosx·81sin2x is