abc.cosA2.cosB2.cosC2=Δs View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths DC Pandey Solutions for Physics HC Verma Solutions for Physics Sunil Batra Solutions for Physics ...
View Solution If angles A and B satisfy√2cosA=cosB+cos3Band√2sinA=sinB−sin3B, then the value of1620sin2(A−B)is ……….. View Solution (a+b+c)(cosA+cosB+cosC) View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE ...
IfA+B+C=π2, then find the value oftanAtanB+tanBtanC+tanCtanA IfA+C=B,thentanAtanBtanC= If cosA=cosBcosC andA+B+C=π, then the value of cotBcotC is यदिA+B+C=πहो तो सिद्ध कीजिए कि - 1+cosA−cosB+cosC1+cosA+cosB−cosC=...
If in a triangle ABC , 2cosAa+cosBb+2cosCc=abc+bca, then the value of the angle A, is View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths
The value ofsin2Acos2B+cos2Acos2B+sin2Asin2B+cos2Asin2Bis …….. View Solution Prove that:cos2A+cos2B−2cosAcosBcos(A+B)=sin2(A+B) View Solution A+B=45^@எனில்(1+tanA)(1-tanB)=2என நிறுவுக ...
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Then, the value of the ∠A is ... Degree View Solution In a ΔABC,ifcosAa=cosBb,show that the triangle is isosceles. View Solution Knowledge Check ln a ΔABC, if cosAa=cosBb=cosCc and the side a = 2, then area of the triangle is A1 B2 C√3/2 D√3Submit ln a ΔABC, ...
Knowledge Check If tanA+sinA=pandtanA−sinA=q, then the value of (p2−q2)2pq is : A16 B22 C18 D42Submit If p=acos2θsinθ and q=asin2θcosθ then (p2+q2)3p2q2 is View Solution tan2P−tan2Q=sin2P−sin2Qcos2P⋅cos2Q View Solution cos−1(pa)+cos−1(qb...
If A+B+C=pi, the value of sin2A+sin2B+sin2C=k sin A sin B sin C then value of k is View Solution If A+B+C=pi then sin2A+sin2B+sin2C= View Solution A + B + C = 180 ^ (@) rArr sin2A-sin2B + sin2C = View Solution If A+B+C=270^(@) then sin2A+sin2B+si...
If cos(A - B) =35and tanA tanB = 2, then the value of cosA cosB is ___ View Solution ⎡⎢⎣0−tan(θ2)tan(θ2)0⎤⎥⎦এবং I একটি2×2ক্রমেরএককম্যাট্রিক্সহলে(I+A)(I-A)^-1 এ...