02-04-2017
Mathematics

contestada

Does anyone can help me to prove that ...

Does anyone can help me to prove that class=

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

Otras preguntas

a spring tide can occur at what day and month?

Does Physical weathering create anything in nature? If it does what does it create?

I need help on an original three paragraph essay! The prompt is "If the president signs a free trade agreement between the United States and Brazil what effects

For which of the following situations would you most likely use appreciative listening? when someone is asking you for advice when someone is playing music

how do I solve this?

I have another Brainliest reward

Do pakistan and bangladesh experience flooding in coastal areas from cyclones

Kevin went fishing and is using a scatterplot to analyze the relationship between the weight of each of the fish he caught in pounds and in kilograms. He uses t

What is nick carraway activities

what is the expression for "the difference between 5 times a number and twice that number"?