why sin90=1& cos90=0
- 2 Answers
- 8066 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / sourabh rana
consier a right traingle whose one angle is very small:i.e.0.009887 which mean other 2 angles are equivalently equals to 90.when we find sin90 in this traingle which is equals to P/H.in this triangle P-->H
| Is This Answer Correct ? | 0 Yes | 3 No |
Answer / anonymus
Sin(0)=0.So, Cos(90)=0.
We Know Sin^2 (x)+ Cos^2 (x)= 1.
Applying this, at x= 90,we get sin(90)=(+-)1.
But Sin(90)>0.So Sin(90)= 1.
| Is This Answer Correct ? | 6 Yes | 12 No |
prove 0!=1.
Explain the concept of experiential learning in Mathematics.
0 Answers Mahatma Gandhi University,
What is the greatest common divisor for the numbers 102 and 30?
Convert 3/20 into a percentage?
find 842.8 +602=
Give a situation where Mathematics can be correlated with economics
0 Answers Mahatma Gandhi University,
State and prove necessary condition for extreme values of the function f (x,y)
Explain the Lagrange's method of undetermined multipliers to find extreme values of the function f (x,y,z).
find 15% of 86.04=
What is the difference between Aims & objectives?
0 Answers Mahatma Gandhi University,
VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 4 : A 4 × 4 grid is made using 40 matches. How many matches are needed to construct a 10 × 10 grid?
If c = a/b; a-1 = c, what is the relation between a and b?
Biological Sciences 
