If sina 1/2 then the value of cot a
WebAnswer (1 of 10): sinA = 1/2. => A= 30°. sin 3A = sin 3×30° = sin 90° = 1. Answer. sin 3A = 3.(1/2.) - 4.(1/2)^3 = 3/2 - 1/2. = 1. Answer. sinA = 1/2. => A= 30°. sin 3A = sin 3×30° … WebLet p = \frac{x^2}{x^2 + k}, \quad q = \frac{y^2}{y^2 + k}, \quad r = \frac{z^2}{z^2 + k}. Then by assumption p + q + r = 1. Letting a, b and c be the sides ... Prove that there are two …
If sina 1/2 then the value of cot a
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Web12 mei 2024 · If sin A=1/2, then find the value of cos A. Asked by Malvika 05/12/2024 Last Modified 12/12/2024. 41 Answers. Learn Mathematics +1 Class IX-X Tuition ... SinA = … WebAnswer (1 of 10): sinA = 1/2. => A= 30°. sin 3A = sin 3×30° = sin 90° = 1. Answer. sin 3A = 3.(1/2.) - 4.(1/2)^3 = 3/2 - 1/2. = 1. Answer. sinA = 1/2. => A= 30°. sin 3A = sin 3×30° = sin 90° = 1. Answer. Second-Method:- sin 3A = 3.sinA - 4.sin^3 A. , putting sin A= 1/2. sin 3A = 3.(1/2.) - 4.(1/2)^3 = 3/2 - 1/2. = 1. Answer.
WebAnswer (1 of 4): sin a / cos a + cos a / sin a = 5/2 1/sinacosa = 5/2 sin a* cos a = 2/5 tan A = 2 , cot A = 1/2 sec A = sqrt ( 1+4) = √5 cos A = 1/√5 , sin A ... Web7 apr. 2024 · -sin sin Trigonometric Ratios of Multiple Angles Suid A cos Asin A 1-tan A Cos2A-T tun A Tan2A- Cot2A- Tan2A-Tan (AA) - 2 tan A 1-tan¹ A Cot2A-Cot (A+A)- Cos2A-Cos(A-A)-CoA CosA-SinA SinA-Cos'A-Sin³A Con2A-CoA S'A-1-Sin³A-A-1-2mm A Cos2A-Cas'A Sia A-Cos'A-(1-Cos A)-2cm A 1 Co2A-CorA-Sin³A cot A-1 2 cot A cos A-sm A 1 1 …
WebArea of a Triangle: ABC = x y 1 x y 1 x y 1 2 1 3 3 2 2 1 1; Slope Formula: Line Joining two points (x 1 y 1 ) & (x 2 y 2 ), m = 1 2 1 2 x x y y Condition of collinearity of three points: x … Web7 apr. 2024 · Check whether 64 1 , 32 1 , 8 1 , … is in GP Given reasons. 12. If cos 0 ∘, sec 4 5 ∘, Cosec 3 0 ∘ are in GP then find common ratio. 13. Write GP, if the first term a = 2 and common ratio r = − 3. 14. The number of bacteria in a certain culture twice every minit bacteria present in the culture. Then write the number of bacteri: in ...
WebWe know the identity: sin 2 θ + cos 2 θ = 1 ⇒ cos θ = 1 - sin 2 θ. Now, ⇒ cos A = 1 - sin 2 A ……………. 2. From equation 1 , ⇒ cos A = 1 - 1 4 = 3 4 = 3 2. Since, cot A = cos A sin …
Webof all the concepts which will help students to score good marks in the exams q 3 find the value of cos a ... 2 in terms of cot a solution ex 8 4 class 10 maths question 2 write all the other trigonometric ratios of a in ... web mathongo 6 class 10 chapter 8 introduction to … bostik fix and flashWeb8 apr. 2024 · If the equation (1+m2)x+2mcx+c2 −a2 =0 has equal roots then show that c2 =a2(1+m2)⋅( CBSE 2024-3M) Q. Find the values of k, if the quadratic 3x∧2− 3 kx+4 =0 has equal roots. (CBSE 2024-1M) Q. For what values of k, the roots of the equation x∧2+4x+k=0 are real? CBSE 2024 [D] Q. hawkers funchalWeb23. Which trigonometric expression has a negative value? Sin 2π/5 Sin 5π/4 Sin 2π/3 Sin 5π/6; 24. How do you get the x and y coordinates with the unit circle value 3pi/2? And … bostik findley inchawkers founder team slWebIf (cosa. +cosB + e087) [Ans. 0] Sol. cos(9-a) + cos(@~ f) +.c08(8- 7) = cosO(cosa +c0s f+ cosy) #sin (sina + sin B +siny)=0 If cos(a+)+si8(0.—B)=Oand tanB #1, then find the value of tanot 1 cosatcos sina sin f+sin ar cos f —cosasin f = 0 cosar(cos f ~sin f) +sinax(cos f -sin B)=0 (cos B -sin By(cosa+ sina) = 0 lf (cos B-sin 8) =0 then tan f = 1, whichis not … bostik flashband installationWebTo find sin (2), we use the half-angle identity for sine: sin (2) = 1-cos (@) = 1- (i) = 11+AV6 6. Find the exact value of sin (12 ) using the half-angle formula. To use the half-angle … bostik flexacryl reviewWeb16 jun. 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and … hawkers five points menu