Explanation

The factorial of a number in mathematics is the product of all the positive numbers less than or equal to a number.

But there are no positive values less than zero, so the data set cannot be arranged, which counts as the possible combination of how data can be arranged (it cannot).

Thus, 0! = 1

Explanation

The set of all natural numbers, together with zer,o is the set of whole numbers

Explanation

 The phrase 'A Blessing in Disguise' refers to something that at first appears to be bad or unlucky but is actually good

Explanation

Apple Of One's Eye means کسی کا پسندیدہ شخص

Explanation

"I like both apples and oranges."

The phrase "both ... and ..." is a correlative conjunction pair used to show the inclusion of two items.

Other options like "but", "or", and "so" do not fit grammatically or logically here.

Explanation

She was very anxious about her exam results.

"Anxious" fits best because it expresses nervousness or worry

Explanation

1−sin2θ=cos2θ

Explanation

Natural numbers are also commonly called counting numbers.

They are the positive integers {1, 2, 3, ...}.

Sometimes, depending on the definition, they may also be referred to as positive integers or non-negative integers when including zero

Explanation

The synonym of "Old بوڑها  " from the provided list is Aged  بوڑها کر دینا

 . 

Explanation

I have seen that movie.

The present perfect tense is formed using:

have/has+past participle