samoka
samoka
02-04-2017
Mathematics
contestada
Does anyone can help me to prove that ...
Respuesta :
ghanami
ghanami
02-04-2017
hello :
by identity : cos²(x)+sin²(x) = 1
divide by cos²(x) :
cos²(x) /cos²(x) +sin²(x)cos²(x)/ = 1/cos²(x)
1+sin²(x)cos²(x)/ = 1/cos²(x)
1+ (sin(x)/cos(x))² = 1/cos²(x)
1+tan²(x) = 1/cos²(x)
conclusion :
tan²(x) = 1/cos²(x) -1
Answer Link
VER TODAS LAS RESPUESTAS ( 38+ )
Otras preguntas
Consider the function represented by 9x + 3y = 12 with x as the independent variable. How can this function be written using function notation? f(x)=____ x+4
What will the last payment be to pay off a $1,250 computer plus 8% sales tax with monthly payments of $120? $10 $11 $12 $20 $30
Venezuela has the largest proven oil reserves in the Western Hemisphere. Answer True False
Which best corrects the clause fragment? A lizard jumped on the box. That my father made. A. A lizard jumped. On the box that my father made. B. A lizard jum
A car's velocity as a function of time is given by vx(t)=α+βt2, where α=3.00m/s and β=0.100m/s3. Draw accurate vx−t graph for the car’s motion between t=0 and t
s=2πr^2+2πrh solve for h step by step please =]
Why were goods imported to the colonies taxed by Parliament? A. Because the British government hoped to fund an independent parliament B. Because the Brit
Which confederate general was assigned the task of protecting five forks from Union forces?
a car traveling at 7.0 m/s accelerates uni formally at 2.5 m/s^2 to reach a speed of 12.0 m/s how long does it take for the acceleration to occur
What was one short-term effect of the Emergency Banking Act? Select one: a. Roosevelt declared a bank holiday. b. Commercial and investment banking were split.
