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Your search - -1. then find the value of x. - did not match any documents
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Taking L.H.S,
1 - cos(a)
V1+ cos(a)
1+ cos(a) 1+cos(a) 1+ cos(a)
1-cos(a)
Use the identities :
• (a+b)(a-b)=a²-b? (a+b)(a+b) = (a+b)
1 COS-a
1+cos(a)
sin (a)
2 1+ cos(a)
sin(a) 1+ cos(a) {proved}
Some formulas :
* sin2A + cos?A = 1
* 1 + tan?A = sec?A =
*1 + cotA= cosec2A
* cos?A - sin?A = cos2A
* sin(A+B) = sinAcosB +
cosAsinB
* sin(A-B) = sinAcosB -
cosAsinB
* cos(A+B) = cosAsinB sinAsinB
* cos(A-B) = cosAsinB + sinAsinB
* tan(A + B)
tanA + tanB 1- tanAtanB
*tan(A-B) = tanA - tanB
1+tanAtanB
* sin20 = 2sin Øcos
* cos20 = 2cos2 0-1
* cos20 = 1 - 2 sin20
Step-by-step explanation:
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