$q\wedge p$  

 $\sim p\wedge\sim q$  

 $p\wedge q$  

 $\sim q\rightarrow\sim p$  

$\exists\ x\in A$ such that x+3 = 8

$\exists\ x\in A\$ such that x+2 <9

$\forall\ x\in A$ , x+6 $\ge$ 9

$\exists\ x\in A\$ such that x+6<10

Tautology

Contradiction

Contingency

None of these

 $\left(p\vee c\right)\wedge\left(t\wedge q\right)$  

 $\left(p\vee c\right)\wedge\left(c\wedge\sim q\right)$  

 $\left(p\wedge c\right)\vee\left(t\wedge q\right)$  

 $\left(p\vee c\right)\wedge\left(t\vee\sim q\right)$  

$7<3\ or\ 4<11$

$7\le3\ and\ 4\le11$

$7\le3\ or\ 4\le11$

$7\ne3\ and\ 4\ne11$

If a function is not continuous then it is not differentiable

If a function is not differentiable then it is not continuous.

If a function is continuous then it is differentiable

If a function is not continuous then it is differentiable.