$R; \{0,\infty \}$

$\{0,\infty \}$

$R;R$

$\{0,\infty \}\{\frac{2}{5};\infty \}$

${\cos }^{-1}\left(\frac{3}{49}\right)$

${\cos }^{-1}(-\frac{3}{49})$

${\cos }^{-1}(-\frac{3}{7})$

${\cos }^{-1}\left(\frac{2}{7}\right)$

0;0

4;1

-4;-1

4;-1

8th ; -ve

7th ; + ve

6th ; -ve

5th; +ve

$\mathrm{\pi }$

$\frac{\mathrm{\pi }}{2}$

$\frac{\mathrm{\pi }}{4}$

$\frac{\mathrm{\pi }}{8}$

$(3,-5) ;\sqrt{15}$

$(-3,5); \sqrt{15}$

$(3,5); 7$

$(-3,5); 7$

$(-3,3);(\frac{3}{4},3)$

$(-3,3); (-\frac{3}{4},3)$

$(3,-3) ; (\frac{3}{4}; -3)$

None

$\infty$

$\frac{1}{3}$

3

${\sec }^2\sqrt{4\mathrm{x}+3}$

${\sec }^2 (4\mathrm{x}+3)$

$\frac{2}{\sqrt{4\mathrm{x}+3}}{\sec }^2\sqrt{4\mathrm{x}+3}$

$\frac{1}{\sqrt{4\mathrm{x}+3} }\sec { }^2(4\mathrm{x}+3)$

$\frac{{\mathrm{\pi }}^3}{192}$

$\frac{{\mathrm{\pi }}^3}{64}$

$\infty$

$0°$

$\frac{\mathrm{\pi }}{2}$

$\frac{\mathrm{\pi }}{4}$

$\frac{\mathrm{\pi }}{8}$

$\frac{5}{7}$

$\frac{7}{5}$

$\frac{5}{12}$

$\frac{2}{12}$

1

$\frac{1}{\sqrt{2}}$

$\frac{1}{\sqrt{3}}$

3

5

9

2

${\mathrm{cosx}}^2$

$\mathrm{x} \cos {\mathrm{x}}^2$

$\cos 2\mathrm{x}$

$2\mathrm{x} \cos {\mathrm{x}}^2$

$\frac{5}{2}$

1

$\frac{2}{3}$

$\frac{2}{5}$

$\mathrm{x}$

$\mathrm{x}+1$

${\mathrm{x}}^2+1$

$\frac{{\mathrm{x}}^2}{2}+1$

1

$\frac{1}{3}$

$\frac{1}{6}$

$\frac{1}{2}$

100

101

102

103

$\frac{18}{5}$

$\frac{21}{5}$

$\frac{5}{18}$

$\frac{17}{5}$