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 ( 29+ )
Otras preguntas
Avery uses a blend of dark chocolate and milk chocolate to make the ice cream topping at her restaurant. She wants to buy 10kg more of dark chocolate than milk
Different post war goals of the United States and the Soviet Union?
Which option should you select to accept a tracked change? A. Accept B. Reject C. Review D. Delete
Select either relation (if the set is a relation but not a function), function (if the set is both a relation and a function), or neither (if the set is not a r
Northern elephant seals were hunted to the point that their population size was reduced to as few as 20 in the late 1800s. Since then, their populations have re
Why is it important for newspapers to understand their readers' background knowledge about an event? O A. So they know whether or not to take an angry tone. O
Predict how the shift in the location of Toyota’s production from Japan to the United States is likely to alter the pattern of comparative advantage in automak
PLEASE HELP WILL GIVE 30 POINTS AND BRAINLIEST IF IT'S RIGHT How did the colonial governments lay the foundation for representative government in the United Sta
What is the best form of fire safety? an extinguisher a water hose the fire department fire prevention
What is the solution of the equation 9^2x=6? Round your answer to the nearest ten-thousandth. 0.3522 2.4526 0.4077 1.4851
