Solve for x: sin (inverse) x + sin (inverse) 2x = pi/3 [ sin (inverse) refers to the inverse function of sine. Also written as sin^-1 ]
find the exact degree values over the given intervals. 0 deg< x < 360 deg
i need this for my test tomorrow and my teacher isnt asnwering my emails
Solve each of the following equations. (i) 3cos2 2x+ 4 sin2x =1 , 0° < x < 360° (ii) sec x (tan x -2) = 2 cosec x , 0° < x < 360° (iii)...
Q 5 (a) prove that tan(A+B) = tan A+tan B ...
if f(x)=3-x^2 find f(-2)
London eye. The wheels 32 passenger capsules are attatched to the external circumfrence of the wheel and are rotated by electric motors. Each excursion lasts the lenght of time it takes to complete...
(i) Prove that cos ( A+B+C) = cos A cos B cos C- sin A sin B cos C -sin A. (ii) Hence show that cos 3A= 4 cos3A- 3 cos A. Thank...
Show that 2 tan20° + 4 tan40° + 8 tan 80° = 9(cot10° - tan10°). Thank you :)
(i) Given that cos A =3/5 and cos(A+B) =-5/13, where A and B are acute, evaluate sin B. (ii) Another acute angle C is such that sin C=12/13. Find sin(A+B+C). (iii)...
Given that cotθ=k and that θ is acute, express tan3θ in terms of k. Ans: (3k2-1)/(k)(k2-3) Thank you :)
A and B are acute angles such that sin(A-B)=1/2 and sin A cos B= 7/10. Without using a calculator, find the value of tanA/tanB. Ans: 7/2 Thank...
given tan(ø)=-5/6, cos(ø)>o. Find csc(ø)
If 2tan2θ = 5 secθ+ 10, where θ is obtuse, find the value of tan θ without the use of calculator. Ans: -√5/2 Thank you :)
Solve for 0°<x<180° for the following equation, 8 cosec 2x cot 2x=3
(i) Factorize the expression 2 sin x cos x - cos x + 4 sin x -2. (ii) Hence solve the equation 2 sin x cos x - 2=cos x - 4 sin x for -360°≤ x ≤ 360°
Thanks for the help! If you could please show all your work? Thanks again!