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If cosecA plus cotA equals 11by2 then find the value of tanA?
CosecA + CotA = 11/2Cosec2A - Cot2A = 1 {By the Identity}(CosecA + CotA) (CosecA - CotA) = 111/2 (CosecA - CotA) = 1(1/SinA) - (CosA/SinA) =2/11(1 - CosA) / SinA = 2/11Therefore 1 - CosA = 2CosA = 3 and SinA = 11Therefore TanA = SinA / CosA = 11/3
Prove that cosA-sinA equals 2sinA?
that cannot be proved because it is not necessarily true.
CosA equals a2 plus c2 minus b2 by 2ac what is this formula?
This is known as the Cosine Rule.
How can the exact value of sin75 be found using sina plus b equals sinacosb plus cosasinb?
sin75 = sin(45 + 30) = sin45cos30 + cos45sin30 = (1/root 2)((root 3)/2) + (1/root 2)(1/2)
How do you find perimeter of triangle whose two sides are given?
You'll have to work out the length of the third side using:a) the sine rule (if information given has one side opposite a given angle and the unknown side also opposite a given angle)SIN RULE: sinA/a = sinB/b = sinC/cb) the cos rule (not opposite).COSINE RULE: a2 = b2 +c2 -2bc x CosA
What is CosA-SinA?
Sin^2 - Cos^2 = 1 {By the Identity}Therefore (SinA-CosA)(SinA+CosA) = 1SinA-CosA = 1/(SinA+CosA)Therefore CosA-SinA = -1/(SinA+CosA)
If SecASinA equals 0 then what will be the Value of CosA?
SecA = 1/CosA Hence SecASinA = SinA/CosA = 0 Then SinA = 0 A = 0 , 180, 360 It doesn't matter what the value of CosA is because if CosA = 0 , then the answer is undefined. 44e/.g/ SinA/CosA = SinA / 0 = Undefined.
If cosecA plus cotA equals 11by2 then find the value of tanA?
CosecA + CotA = 11/2Cosec2A - Cot2A = 1 {By the Identity}(CosecA + CotA) (CosecA - CotA) = 111/2 (CosecA - CotA) = 1(1/SinA) - (CosA/SinA) =2/11(1 - CosA) / SinA = 2/11Therefore 1 - CosA = 2CosA = 3 and SinA = 11Therefore TanA = SinA / CosA = 11/3
Prove that cosA-sinA equals 2sinA?
that cannot be proved because it is not necessarily true.
What is the value of sin³A-cos³A?
1/4 (3 (sinA - cosA) - (sin3A+cos3A) )
If cosA plus cosB 12 and sinA plus sinB 14 then tan(A2 plus B2)?
1 by 2
CosA equals a2 plus c2 minus b2 by 2ac what is this formula?
This is known as the Cosine Rule.
What is the market cap for Sina Corporation SINA?
As of July 2014, the market cap for Sina Corporation (SINA) is $3,264,806,641.55.
If sinA equals 1 by 3 evaluate cosA cosecA plus tanA secA?
SinA = 1/3 = Opposite/HypotenuseTherefore taking Opposite to be 1cm and Hypotenuse to be 3cm.Therefore Adjacent side = Root of 32 - 12= root 8CosA = Adjacent/Hypotenuse = root8 / 3CosecA = Hypotenuse/Opposite = 3/1TanA = Opposite/Adjacent = 1 / root8SecA = Hypotenuse/Adjacent = 3 / root8Therefore,(CosA.CosecA) + (TanA.SecA) = (root8 / 3 . 3 / 1) + (1 / root8 . 3 / root8)= (root8) + (3 / 8)= 2(root2) + (3 / 8)
What has the author Sina Hofmann written?
Sina Hofmann has written: 'Sina Hofmann'
What is the symbol for Sina Corporation in NASDAQ?
The symbol for Sina Corporation in NASDAQ is: SINA.
Why are there two sine cosine and tangent ratios?
There aren't. There are three: Sine, Cosine and Tangent, for any given right-angled triangle. They are related of course: for any given angle A, sinA/cosA = tanA; sinA + cosA =1. As you can prove for yourself, the first by a little algebraic manipulation of the basic ratios for a right-angled triangle, the second by looking up the values for any value such that 0 < A < 90. And those three little division sums are the basis for a huge field of mathematics extending far beyond simple triangles into such fields as harmonic analysis, vectors, electricity & electronics, etc.
