Complete Question
The complete question is shown on the first uploaded image
Answer:
The value of
The value of
Step-by-step explanation:
Generally the total angle that make up a circle is
From the diagram we see that
=>
Generally angle that is formed as a result of interception of a chord and a tangent is equal to the intercepted arc divided by 2
This implies that
substituting values
Answer:
x _ a
Step-by-step explanation:
because if a is zero .then they should be subtraction
Answer:
Step-by-step explanation:
12a)To rationalize the denominator, multiply the denominator and numerator by √5.
b) (a+b)² = a² + 2ab + b²
(1 +√3)² = 1² + 2*1*√3 + (√3)²
= 1 + 2√3 + 3
= 4 + 2√3
a = 4 ; b =2
13) (a + b)(a - b) = a² - b²
Answer:
=8x^3+27
Step-by-step explanation:
First you are going to multply 2x by all of the other numbers in the 2nd parentheses, then do the same with 3. By doing this you should get and answer then combine like terms.
A real number is rational, if it is the ratio of two integers. Otherwise it is called irrational. If D<span> is the diameter of circle, then </span>C<span> = </span>π D<span> is it's circumference.</span>