Webe^ (1) = cos (i) - i sin (i). Subtracting the second equation from the first equation and then dividing by 2i, we have sin (i) = [e^ (-1)-e^ (1)]/ (2i) = [- (1/e - e)/2]*i = [ (e - 1/e)/2]*i. So sin (sqrt {-1}) = [ (e - 1/e)/2]*i. ( 3 votes) Show more... Daeelhawk 3 years ago how do yo put co secant and cotangent on a calculator • ( 3 votes) WebFree math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.
How do you find the limit cosx/(pi/2-x) as x->pi/2? Socratic
Webcos (pi/2+x)=-sinx trigonometry identies solve Seekho aur sikhao 6.3K views 2 years ago sin (pi/2 + x) sin (pi/2 + theta) Ravi Ranjan Kumar Singh 12K views 2 years ago... WebMấy bạn giải thích vì sao cos{11.pi/2 -x) = -sinx mà k phải là sin x? Loga Sinh Học lớp 12 0 lượt thích 2 xem. 1 trả lời Thích Trả lời Chia sẻ ... `= -cos(π/2 -x)` `=-sin x` Vote (0) … fresno state football 1998
cos(pi/2 - x) cos(pi/2 - theta) - YouTube
WebEvaluate the Limits of the functions. Now, split the limit of the product of functions as product of their limits by the product rule of limits. = lim x → 2 ( π 2 x) × lim x → 2 sin ( π 2 − π x) ( π 2 − π x) Now, find the limit of the first fractional function by the direct substitution method as x approaches 2. WebMar 15, 2024 · Explanation: We know that ,cos is an even function. ⇒ cos( −θ) = cosθ. ∴ cos(x − π 2) = cos( π 2 −x) = sinx. OR. cos(A −B) = cosAcosB + sinAsinB. cos(x − π 2) = cosxcos( π 2) + sinxsin( π 2) cos(x − π 2) = cosx(0) +sinx(1) = 0 +sinx = sinx. Answer link. WebNov 28, 2016 · Explanation: cos(( π 2) +x) = cos( π 2)cosx −sin( π 2)sinx. cos( π 2) = 0 sin( π 2) = 1. cos(( π 2) +x) = cos( π 2)cosx0 − sin( π 2)1 sinx. = − sinx. fresno state football 2012 schedule