alessacromano
alessacromano
01-12-2017
Mathematics
contestada
tan80+tan70/1-tan80tan70
Respuesta :
chudung1976
chudung1976
01-12-2017
We have the formula tan(a+b)= (tana+tanb): (1-tana x tanb)
And now we have a=80, b=70 and
(tan80+tan70): (1-tan80 x tan70)= tan(80+70)= tan150
If you write 70 for 70°, we have tan150°=1/√3
Merry Christmas
Answer Link
VER TODAS LAS RESPUESTAS ( 83+ )
Otras preguntas
Which of the following is x⁴ + y⁴ identically equal to? (A) (x² + y²)(x + y)(x - y) (B) (x² + xy + y²)(x² - xy + y²) (C) (x² + √2xy + y²)(x² - √2xy + y²) (D) (x
names is often given to the journey of africans who were brought to the americas as slaves?
The shape of the clock is a regular dodecagon with a radius of 14cm. Centered on the clock's face is a green circle of radius 9cm. If the region outside the cir
WHICH EXPRESSION IS EQUIVALENT TO SIN 22 COS 18 + COS 22 SIN 18?
if a pH of water is 5.3 then 4.3 is it 1.0 less acidic 1.0 less basic
During the evolution of life on Earth, the photosynthetic organisms initially responsible for raising atmospheric oxygen concentrations from less than 1 percent
what planet starts with e?
three things scientists learned about earth in beginning of 1800s
true or false a trapezoid is a polygon, so all polygons are trapezoid. explain.
what derived unit is usually used to express the density of liquids?
