Crowdly

Add to Chrome

Universities
online.uom.lk
In24-S1-MA1014 - Mathematics

In24-S1-MA1014 - Mathematics

Looking for In24-S1-MA1014 - Mathematics test answers and solutions? Browse our comprehensive collection of verified answers for In24-S1-MA1014 - Mathematics at online.uom.lk.

Get instant access to accurate answers and detailed explanations for your course questions. Our community-driven platform helps students succeed!

View this question

❌

✅

View this question

Which of the following are True about Real Numbers $\mathbb{R}$ \mathbb{R}?

$\forall a \in \mathbb{R} \exists b \in \mathbb{R}; a>b$ \forall a \in \mathbb{R} \exists b \in \mathbb{R}; a>b

✅

$\forall a\in \mathbb{R}-\{0\}; a>0\Leftrightarrow a^{-1}>0$ \forall a\in \mathbb{R}-\{0\}; a>0\Leftrightarrow a^{-1}>0

✅

$\exists b \in \mathbb{R} \forall a \in \mathbb{R}; a>b$ \exists b \in \mathbb{R} \forall a \in \mathbb{R}; a>b

❌

$\exists a \in \mathbb{R} \exists b \in \mathbb{R}; a>b$ \exists a \in \mathbb{R} \exists b \in \mathbb{R}; a>b

✅

$\forall a \in \mathbb{R} \forall b \in \mathbb{R}; a>b$ \forall a \in \mathbb{R} \forall b \in \mathbb{R}; a>b

❌

$\exists a,b,c \in \mathbb{R}; a+(b\cdot c)=(a+b)\cdot (a+c)$ \exists a,b,c \in \mathbb{R}; a+(b\cdot c)=(a+b)\cdot (a+c)

✅

$\forall a,b,c \in \mathbb{R}; a\cdot (b+c)=(a\cdot b)+(a \cdot c)$ \forall a,b,c \in \mathbb{R}; a\cdot (b+c)=(a\cdot b)+(a \cdot c)

✅

View this question

Let A be a non empty subset of $\mathbb{R}$ \mathbb{R} which is bounded below. What is True about $\inf A$ \inf A?

It always exists in $\mathbb{R}$ \mathbb{R}

✅

It is equal to $\min A$ \min A

❌

It always exists in $\mathbb{Z}$ \mathbb{Z} if A is a non empty subset of $\mathbb{Z}$ \mathbb{Z} which is bounded below.

❌

It is a lower bound

✅

It is the supremum of the set of upper bounds of A

❌

It is the infimum of the set of lower bounds of A

❌

It is equal to $-\sup(-A)$ -\sup(-A) where $-A=\{-x | x\in A\}$ -A=\{-x | x\in A\}

✅

It is the minimum of the set of lower bounds of A

❌

It is the maximum of the set of upper bounds of A

❌

View this question

Want instant access to all verified answers on online.uom.lk?

Get Unlimited Answers To Exam Questions - Install Crowdly Extension Now!

Add to Chrome

Telegram Instagram TikTok Question Bank

Add to Chrome