Answer:
cot . (x- π/2)= - tanx
Step-by-step explanation:
cot . (x- π/2)= - tanx
cot .x - cot π/2= - tanx
cot π/2= 1/tanπ/2
But tan π/2= ∞
cot π/2 = 1/∞= 0
cotx - 0= - tanx
cot x = - tanx
cosx/sinx= - sinx/cosx Putting values of cot and tan
cosx/ sinx ( sinx/cos x) = -sinx/cos x (sinx/cos x )
Multiplying both sides with sinx/cos x
1= - sin²x/cos²x
cos²x= - sin²x as cosx = -sinx
Answer:
31.62
Step-by-step explanation:
If we know it's a right triangle, we can use the Pythagorean Theorem to solve this problem.
10^2 + 30^2 = 1000
Find the square root of 1000 and get your answer of 31.62.
Hope this Helps!
Good Luck!
<em>-kiniwih426</em>
9514 1404 393
Answer:
see attached
Step-by-step explanation:
Apparently, you just need to draw a picture. This works well if you start with graph paper that is graduated in millimeters.
Of course, with a compass and ruler, you don't need graph paper. The lines don't need to be at right angles, either.
