Trigonometry Solutions- Test Questions-i

SocialTwist Tell-a-Friend

Unlimited Tutoring & Homework Help
  • Instant Help. Connect to a Tutor Now. »   
  • K-12, College and AP Exams
  • 24 x 7 Private Tutoring

Question 21

Question:   Prove that

Answer:   


= (1 - sin2q) - sin2q

Question 22

Question:  

Answer:   

Question 23

Question:   Prove that

Answer:   
= cosq + 1




Question 24

Question:   Prove that

Answer:    LHS = 1 + sin A



Question 25

Question:   Prove that
cos4A = 8cos4A - 8cos2A + 1.

Answer:    LHS = cos2 2A - sin2 2A





Question 26

Question:   Prove that

Answer:   
LHS = cos x cos y + sin x sin y



Question 27

Question:   Prove that

Answer:   


Question 28

Question:   Prove that

Answer:   



Question 29

Question:   Prove that

Answer:   






Question 30

Question:   Prove that

Answer: