cbrown9637
cbrown9637 cbrown9637
  • 01-02-2017
  • Mathematics
contestada

how to find the exact value of sec(13pi/6)

Respuesta :

LammettHash
LammettHash LammettHash
  • 01-02-2017
[tex]\dfrac{13\pi}6\equiv\dfrac\pi6\mod2\pi[/tex] (in other words, they represent the same angle on the unit circle)

So,

[tex]\sec\dfrac{13\pi}6=\sec\dfrac\pi6=\dfrac1{\cos\dfrac\pi6}[/tex]

You have [tex]\cos\dfrac\pi6=\dfrac{\sqrt3}2[/tex], so [tex]\sec\dfrac\pi6=\dfrac{\sqrt3}2[/tex]
Answer Link

Otras preguntas

the central message or insight revealed through a story is known as the
In William Blake's poem "The Chimney Sweeper," the metaphor "coffins of black" represents___.A. InnocenceB. ChimneysC. DaffodilsD. The Tiger
BCALLE can u help me with both 2
Explain why there must be at least two lines on any given plane.
what common conflict in magical realist literature often leads the reader to the central theme of a story?
The expression 1000(1.1)^t represents the value of a $1000 investment that earns 10% interest per year, compunded annually for t years. What is the value of a $
How did the rise of Mali contribute to the fall of the empire of Ghana
Find the factorization of the polynomial below. 3x²+10x+3 A. (3x+1)(x+3) B. (3x+2)(x+2) C. (3x+2)(x+3) D. (3x+1)(x+2)
What is the value stored at x, given the statements: int x; x = 3 / static_cast(4.5 + 6.4);?
An operon encodes enzymes for making an essential amino acid and is regulated like the trp operon. Which of the statements is true?