Simplify : 12
Simplify 12by rationalizing the denominator.
12=12×22=22
Hence the simplified form of 12 is 22.
{1(sec2θ−cos2θ)+1(cosec2θ−sin2θ)}(sin2θcos2θ)=1−sin2θcos2θ2+sin2θcos2θ
Determine whether the following numbers are in proportion or not:
13,14,16,17