If 1 sinx 2 then cosx can be
WebYou can use this fact to help you keep straight that cosecant goes with sine and secant goes with cosine. The following (particularly the first of the three below) are called "Pythagorean" identities. sin 2 ( t) + cos 2 ( t) = 1 tan 2 ( t) + 1 = sec 2 ( t) 1 + cot 2 ( t) = csc 2 ( t) Advertisement WebIf sinx+cosx= 2, then sinxcosx is equal to A 1 B 21 C 2 D 2 E 21 Medium Solution Verified by Toppr Correct option is B) sinx+cosx= 2 ⇒(sinx+cosx) 2=( 2) 2 ⇒sin 2x+cos 2x+2sinxcosx=2 ⇒sinxcosx= 21 Video Explanation Was this answer helpful? 0 0 Similar questions cosA1−sinA is equal to Medium View solution > The value of the expression
If 1 sinx 2 then cosx can be
Did you know?
Web26 mrt. 2024 · Answer: We have, Dividing each term by cos²x, We get, ( Because, sec²x = 1 + tan²x ) Let tan x = t, If 2t-1=0 ⇒ t = 1/2 If t-1 = 0 ⇒ t =1, Thus, tan x = 1/2 or tan x = 1. Hence, proved. Find Math textbook solutions? Class 5 Class 4 Class 3 Class 2 Class 1 NCERT Class 9 Mathematics 619 solutions NCERT Class 8 Mathematics 815 solutions Web6 aug. 2024 · Step-by-step explanation: Given, cos (x) = We know that , -cos = ⇒ cos = ⇒cos = ........... (i) So, from the given question we have , cos (x) = Now put the value of …
Web1 Explanation: Recall the identity cos2x = cos2x− sin2x . Applying it, we get cos2xcos2x−sin2x+ sin2x = cos2xcos2x = 1 More Items Examples Quadratic equation x2 − 4x − 5 = 0 Trigonometry 4sinθ cosθ = 2sinθ Linear equation y = 3x + 4 Arithmetic 699 ∗533 Matrix [ 2 5 3 4][ 2 −1 0 1 3 5] Simultaneous equation {8x + 2y = 46 7x + 3y = 47 …
Web26 mrt. 2024 · Answer: We have, Dividing each term by cos²x, We get, ( Because, sec²x = 1 + tan²x ) Let tan x = t, If 2t-1=0 ⇒ t = 1/2 If t-1 = 0 ⇒ t =1, Thus, tan x = 1/2 or tan x = 1. … Web(1) Square both sides. You will get = , or, replacing by 1 1 + 2*sin (x)*cos (x) = 1.44, which implies sin (x)*cos (x) = = 0.22. (2) Now we are ready to calculate . Use the formula = . It …
WebSolve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.
Web6 aug. 2024 · If cos(x)=-1/2. then what is the value of x? See answers Advertisement Advertisement gayatrikumari99sl gayatrikumari99sl Answer: 120 is the required value of x. Step-by-step explanation: Given, cos(x) = We know that ,-cos = ⇒ cos = personal injury trial processWebIf not, then you can safely divide by cosx and forget about x = pi/2 or -pi/2. If you want to be totally safe, do sinx - 2cosx = 0 Now use the Rsin (x - a) method to rewrite sinx - 2cosx. The equation Rsin (x-a) = 0 is then trivial to solve. Cosx = … standard headed stud lengthsWebSolution: Given: sin (x) = 1/2 Using the trigonometric identity sin 2 (x) + cos 2 (x) = 1 Substituting the value (1/2) 2 + cos 2 (x) = 1 cos 2 (x) = 3/4 cos (x) = ±√3/2 We know that … standard header font sizeWeb31 jan. 2024 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket … standard header height for windows and doorsWebSolution Verified by Toppr Correct option is A) cosx+sinx= 21 Divide both sides by cosx 1+tanx= 2cosx1 Square both sides (1+tanx) 2= 4sec 2x (1+tan 2x+2tanx)4=sec 2x=1+tan 2x After simplification 3tan 2x+8tanx+3=0 D=d 2=b 2−4ac=64−36=28 d=±2 7 These are 2 … standard hco3WebIf sinx+cosx= 2, then sinxcosx is equal to A 1 B 21 C 2 D 2 E 21 Medium Solution Verified by Toppr Correct option is B) sinx+cosx= 2 ⇒(sinx+cosx) 2=( 2) 2 ⇒sin 2x+cos … standard hd netflix plan philippinesWebHow do you solve 2sinxcosx+ cosx = 0 from 0 to 2pi? Solution set is {2π, 67π, 23π, 611π} Explanation: In 2sinxcosx+ cosx = 0 ... After getting 2sinxcosx = cosx, you cannot divide the both sides by cosx because cosx can be zero. So, we have 2sinxcosx− cosx = 0 cosx(2sinx −1) = 0 cosx = 0 or 2sinx− 1 = 0. standard headers in cpi