cos/1-sin=1+sin/cos
Answers
Answer:
ASK
Find an Online Tutor Now
TRIGONOMETRIC FORMULAS TRIGONOMETRIC IDENTITIES
Hannah C. asked • 12/03/14
Cos/1+sin + 1+sin/cos = 2sec
I thought it could possible be solved by a double angle formula, but I cant seem to make it work
Follow4
Add comment
More
3 Answers By Expert Tutors
By:
Jacob K. answered • 12/03/14
TUTOR New to Wyzant
Knowledgeable and patient MBA and Civil Engineering graduate
SEE TUTORS LIKE THIS
cos (1+sin)
(1+sin) + cos
= cos2 + (1+sin)2
cos*(1+sin)
= cos2 + 1 + 2sin + sin2
cos*(1+sin)
we know that cos2 + sin2 = 1
= (1+1+2sin)
cos*(1+sin)
= (2+2sin)
cos*(1+sin)
= 2(1+sin)
cos*(1+sin)
= 2
cos
= 2sec
Step-by-step explanation:
plz make this question brainlist fast only 1 brainlist question left
Answer:
Step-by-step explanation:
L.H.S.
cos/1-sin
cos(1+sin)/(1-sin)(1+sin) (Multiplying 1+sin to both numerator and denominator)
cos(1+sin)/1-sin²
cos(1+sin)/cos²
1+sin/cos = R.H.S.(Proved)
Hey mate hope this helps plz mark me as brainlist