radomes.openskiesproject.org
ashleyew28 ashleyew28
  • 25-07-2016
  • Mathematics
Answered

Which equation is not an identity?



tan(–t) = –tan t




tan t(csc t + cot t) = sec t + 1




sin tcot t = cos t




cos2t − sin2t = –1

Verified Answer :

briannapruna4 briannapruna4
  • 25-07-2016

Not 100% positive but i believe it is the third choice

Answer Link
Anonymous Anonymous
  • 25-07-2016

Hey there, 

 Let t = 0 and you'd get 1 - 0 = -1 which is false 

I would go for (D)

Answer Link

Related Questions

Which gives the equivalent decimal form of the fraction 1416 40073 07005 0875 47003
A transformer is used to convert mechanical energy to electrical energy answer true false
Write equation in function form 4xy10
Everything because its hard
The main disconnect in a service panel is an a ammeter b bus bar c receptacle d circuit breaker
To override a presidential veto at least 66 23 of the Senate must vote to override the veto There are 100 senators in the Senate What is the minimum number of v
Which of the following would most likely act as a BronstedLowry acid A OH B HCN C CCl4 D MgOH
What means republicOr a sentence with the word republic
What is one factor that motivated Japans imperialism before World War II A Japan lacked many important natural resources B Japans neighbors were ruled by antiJa
a DC voltmeter may be used directly to measure a frequency bpolarity c power factor d power