Which of the following statements is wrong ?

(a) sin2? + cos2? = 1

(b) 1 + tan2? = sec2?

(c) sin2? - cos2? = 1

(d) sin2? = 2 sin? cos?

Answer Posted / uttara

sin2? - cos2? = 1

Is This Answer Correct ?    35 Yes 15 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

plz send me the question papers of RRB for any post

1564


Sir, Generally how long it ll take for RRB to release the results of exams which they conduct(i.e) for traffic apprentice,goods guard etc

1766


who administers the oath to the cheif justice of india?

1874


sir please iwant to rrb health inspector examination privious papers

1987


Sir, please send me rrb technician 3 electrician model questions in email id: anand.jsr01@gmail.com.

2260






i need previous year questions for section engineer(S&T) for electronics engineer. please send some sample questions to my mail id deepaselvarengan@gmail.com Thanks in advance !

1486


sir this is nagesh iam a physically challenged person i had applyed to accounts officer cum typist and commercial cleark i have no knowledge of rrb exams.so kindly please send privious non technical model papers

1782


where can we search the previous question papers for station master,ticket collector,goods gaurds...plz mention book name.

1538


plz help me. i have selected for sbi clerk interview. 1.maine bca 3years 6 month(3.5 years) me complete kiya jab ki univercity dwara minimum 3 years aur maximum 6 years time complete ke liye diya jata hai . biodata me no of attempts me kya bharu. 2. agar five years me ek yaers se adhik samay tak aap khin rhen hai to uska describe karna hai. lekin mai to home me hi rha hun kahin gya nahi to is column me kya bharun yo ise blank chor dun. 3.maine 2000 me matric kya tha usi samy school se character certificate mila tha kya usi samay wale character ko interview me de sakta hun. plz answer me quickly.

1569


i want rrb qustion papers

2273


Sir, I am Diploma in Mechanical Engineer holder and I have been applied RRB-Chennai now. I need RRB chennai JE mechanical last 5 year question papers Plz send me on this email id gunacpt@gmail.com

1360


please send me rrb competitive exam syllabus and question and ansers

1869


how to become m.r o?

2216


Dear sir/Madam my question is, could you get me a sample paper of RRB aptitude test of last three year

1656


sir, iam preparing for locopilot exams ITI(ELEC) Please can you mail me the model paper&syllabus for exam thanking you shankar

1589