Answer:
See below
Step-by-step explanation:
Here we need to prove that ,

Imagine a right angled triangle with one of its acute angle as
.
- The side opposite to this angle will be perpendicular .
- Also we know that ,


And by Pythagoras theorem ,

Where the symbols have their usual meaning.
Now , taking LHS ,

- Substituting the respective values,





Since LHS = RHS ,
Hence Proved !
I hope this helps.
Answer:
-3 ≤y≤6
Step-by-step explanation:
The range is the output values or the y values
The y values go from -3 to 6 including these values
-3 ≤y≤6
Answer:
the correct answer is A, (The hiker is 371 m below Kalpana.)
Answer:
second option
Step-by-step explanation:
Using the rule of radicals
×
⇔ 
Simplifying the radicals

= 
=
×
×
× 
= 3 ×
× x × 
= 3x
-------------------------------

= 
=
×
×
× 
= 2 ×
× x × 
= 2x
---------------------------------------
Thus
3 × 3x
- 2 × 2x
= 9x
- 4x
= 5x