Trigonometric Ratios of Complementary Angles
Trending Questions
Q. sin25°cos65°+tan23°cot67° =_______
- 3
- 0
- 2
- 1
Q.
sin (55° - A) - cos (35° + A) =
2
1
0
-1
Q.
1+sin(90∘−θ)−cos2(90∘−θ)cos(90∘−θ) [1+sin(90∘−θ)]=
cot θ
tan θ
1
0
Q.
If A, B, C are the angles of a triangle, then
sin(B+C2)=
sinA2
tanA2
cotA2
cosA2
Q.
The value of cos226∘+cos264∘sin255∘+sin235∘ is:
(find out, without using trignometric tables)
1
-1
0
not defined
Q. sin 49∘.tan 11∘.sec 41∘.tan 79∘=________.
- 12
- 2
- 1
- 0
Q.
Calculate sin 70∘cos 20∘+cosec 36∘sec 54∘−2 cos 43∘ cosec 47∘.
2
1
-1
0
Q.
Find the value of the following expression.
tan 82∘cot 8∘+cosec 38∘sec 52∘+2 sin 35∘sec 55∘sin250∘+sin240
4
3
2
1
Q.
Express (sin 75∘+cosec 75∘) in terms of trigonometric ratios of angles between 0∘ and 15∘.
- (sec 15∘+sin 15∘)
- (cos 45∘+sec 45∘)
- (cos 15∘+sec 15∘)
- (cos 25∘+sec 25∘)
Q.
sec 17∘cosec 73∘+tan 68∘cot 22∘−[cos2 44∘+cos2 46∘]=___.
-1
2
1
0