Web9 Jun 2024 · sec 8A−1 sec 4A−1 s e c 8 A − 1 s e c 4 A − 1 is equal to A. tan 2A tan 8A t a n 2 A t a n 8 A B. tan 8A tan 2A t a n 8 A t a n 2 A C. cot 8A cot 2A c o t 8 A c o t 2 A D. None … Web30 Aug 2012 · LHS= SEC 8A-1/SEC4A-1 = (1/COS8A - 1)/ (1/COS4A - 1) = (1-COS 8A)/ (1-COS4A) * (COS 4A/COS 8A) = (2 SIN 2 4A) (COS4A) / (2 SIN 2 2A) (COS8A) = (2SIN4ACOS4A) (SIN 4A)/ (2 SIN 2 2A) (COS 8A) = (SIN 8A) (2 SIN 2A COS 2A)/ (CO8A) (2 SIN 2 2A) =TAN 8A COT 2A =TAN 8A /TAN 2A =RHS HENCE, proved!! Was this answer …
Prove that \[\dfrac{{\sec 8A - 1}}{{\sec 4A - 1}} = \dfrac{{\tan 8A ...
WebTour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site WebAnswer (1 of 5): Like this - \frac{1+\tan^2a}{1-\tan^2a} = \sec2A 1+tan^2a is the same as sec^2a. So, \frac{sec^2a}{1-tan^2a} = \sec2a That can be also written as \frac{1}{cos^2} \displaystyle\frac{\frac{1}{cos^2}}{1-\frac{sin^2a}{cos^2a}} = \sec2a The 1 in the denominator, to subtract from... jeffrey mullins chattanooga
prove that: (sec8A - 1)/(sec4A - 1) = tan8A/tan2A - askIITians
Web30 Mar 2024 · L .H .S = sec 8 A − 1 sec 4 A − 1 = tan 8 A tan 2 A. Note: Whenever you are asked to prove an equation, always start with one side of the equation and then try to … Web21 Feb 2024 · How many 1/2 inch cubes will it take to fill a rectangular prism with width of 1 in, length of 3 in, and height of 1 in? . a horse is placed for grazing inside a rectangular field 60 m by 28m and is tied to one corner by a rope 14m long. on how much area can its graze? Web17 Mar 2024 · Hint: We solve this problem by using the simple formulas of trigonometric ratios and half angle formulas. We have the relation between secant and cosine trigonometric ratios as \[\Rightarrow \sec \theta =\dfrac{1}{\cos \theta }\] Now, we have the formulas of half angles for cosine and sine ratios as jeffrey murphy attorney