Answer:
Im going to answer your question in the next note.
Given:
In a right angle triangle θ is an acute angle and 
.
To find:
The value of 
.
Solution:
In a right angle triangle,
We have,
It means the ratio of perpendicular to base is 3:5. Let 3x be the perpendicular and 5x be the base.
By using Pythagoras theorem,
In a right angle triangle,
Therefore, the value of is 
.
The answer depends on the perspective; however, this question is often meant to be a "trick question"; with the answer being: 2 (two) apples!
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The rationale behind this answer is that if there are three apples, but you "take 2 away" you now have "2" apples, because YOU are the one who "took away the 2 apples"—so presumably, YOU have the "2 apples" that YOU "took away"!
Answer:
One mole of lithium (Li) is equal to 6.022 X 1023 atoms of lithium.
