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 ( 27+ )
Otras preguntas
Huntington's disease is a genetic disorder that can result in memory loss and abnormal body movements. huntington's disease results from a defective gene (h) th
Given: x + 2 < -5. Choose the solution set.
When calculating the volume of an object, why do the units end up being raised to the third power as in cm3?
An electric iron is plugged into a receptacle that has 110 v present. If the voltage loss from the panel to the receptacle is 6 v, the line voltage at the panel
Help please I'm begging someone to give me the right answer please!!!
Fill in the blank below with the vocabulary word that best completes the sentence. ___is the science of naming and classifying organisms based on structural c
A number divisible by 3 and 4 but not 9
Light bulbs usually cost $2. They are on sale for 0.50 of the regular price. What is the slae price? is this a better price than if the sale price were 0.35 of
Elena no _______ traer el DVD. podemos puedo podeis puede
Modernist works could best be described as: Select all that apply. negative original copied hopeful
