Web9 mrt. 2024 · Hence cos x = −4/5 Now sin 2 y = 1 – cos 2 y = 1 – 144/169 = 25/169 i.e. sin y = ± 5/13. Since y lies in second quadrant, hence sin y is positive. Therefore, sin y =5/13. Substituting the values of sin x, sin y, cos x and cos y in (1), we get sin(x + y) 3/5 × (-12/13) + (−4/5) × 5/13 = (-36/65) –(20/65) = -56/65. Therefore, sin(x+y ... WebQuestion From - NCERT Maths Class 11 Chapter 3 SOLVED EXAMPLES Question – 25 TRIGONOMETRIC FUNCTIONS CBSE, RBSE, UP, MP, BIHAR BOARDQUESTION …
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WebAnswer by stanbon (75887) ( Show Source ): You can put this solution on YOUR website! How would I find cos (x-y) if cos x= 3/5 and cos y= 4/5 when the exact value needs to be … WebStep 1: GIven information. ⇒ sin x + sin y = 3 ( cos y – cos x) ⇒ sin x + 3 cos x = 3 cos y – sin y. Now solve the above equation like that. ∴ 1. sin x + 3. cos x = 3. cos y – 1. sin y. … broome cable beach club resort and spa
if sin x = 3/5, find cos x Wyzant Ask An Expert
WebSubstituting x = y on both sides here, we get, cos 2x = cos 2 x - sin 2 x. Using the Pythagorean identity sin 2 x + cos 2 x = 1, along with the above formula, we can derive two other double angle cosine formulas which are cos … Web3 aug. 2024 · Diketahui sin x = 3 / 5 dan cos y = 12 / 13 dengan x sudut tumpul dan y sudut lancip. Nilai tan (x + y) adalah …. A. – 56 / 33 B. – 16 / 63 ... Post a Comment for "Diketahui sin x = 3/5 dan cos y = 12/13 dengan x sudut tumpul dan y sudut lancip. Nilai tan (x + y)" Newer Posts Older Posts Pondok Budaya Bumi Wangi. About Me. WebClick here👆to get an answer to your question ️ If sin x = 35 , cos y = - 1213 , where x and y both lie in second quadrant, find the value of sin(x + y). Solve Study Textbooks Guides. Join / Login >> Class 11 >> Maths >> Trigonometric Functions >> Trigonometric Functions of Sum and Difference of Two angles ... s i n y = 1 6 9 2 5 = ± 1 3 5 ... broome co board of elections