Step-by-step explanation:
But, as you know that
Then the equation (1) becomes
Multiply Numerator and Denominator by
then,
take cos y as common, then
Here, (1+cos y/cos y + 1) gets cancelled.
Then the remaining answer is cos y.
Answer:
x = 5.5
Step-by-step explanation:
Given 2 secants intersecting the circle from a point outside the circle then
The product of the external part and the entire part of one secant is equal to the product of the external part and the entire part of the other secant, that is
x(x + 14) = 6(6 + 12)
x² + 14x = 6 × 18 = 108 ( subtract 108 from both sides )
x² + 14x - 108 = 0 ← in standard form
with a = 1, b = 14 and c = - 108
Using the quadratic formula to solve for x
x = ( - b ± ) / 2a
= ( - 14 ± ) / 2
= ( - 14 ± ) / 2
= ( - 14 ± ) / 2
x = or x =
x = - 19.5 or x = 5.5 ( to 1 dec. place )
However x > 0 ⇒ x = 5.5
Answer:
28.27
you just have to know the formula
Answer:
there is no question if you provide one in comments I will edit my answer to answer the question
Step-by-step explanation: