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Solve the following:tan x + tan 4x+tan 7...

Solve the following:`tan x + tan 4x+tan 7x`=tan x tan 4x tan 7x`

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MBD PUBLICATION-TRIGONOMETRIC FUNCTIONS-QUESTION BANK
  1. Solve the following:cos3x-cos2x=sin3x

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  2. Solve the following:cos x+sin x=cos 2x+sin 2x

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  3. Solve the following:tan x + tan 4x+tan 7x=tan x tan 4x tan 7x

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  4. Solve the following:2(sec^2theta+sin^2theta)=5

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  5. Solve the following:(cos x)^( sin^2x-frac{3}{2}sinx+frac{1}{2})=1

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  6. Fill int the blanks choosing correct answer from the bracket. In Del...

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  7. Fill int the blanks choosing correct answer from the bracket. If a c...

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  8. Fill int the blanks choosing correct answer from the bracket. In a D...

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  9. Fill int the blanks choosing correct answer from the bracket. In tri...

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  10. Fill int the blanks choosing correct answer from the bracket. If sin...

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  11. Fill int the blanks choosing correct answer from the bracket. In Del...

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  12. Fill int the blanks choosing correct answer from the bracket. InDelt...

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  13. Fill int the blanks choosing correct answer from the bracket. If a c...

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  14. Fill int the blanks choosing correct answer from the bracket. Ifa = b...

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  15. Fill int the blanks choosing correct answer from the bracket. If a =...

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  16. Prove that a sinA - b sinB = c sin(A-B)

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  17. Prove that b cosB + c cosC = a cos ( B-C)

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  18. Prove that if (a + b+ c)(b + c - a) = 3bc then A = 60^@

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  19. Prove that If (b+c)/5 = (c+a)/6 = (a+b)/7 then sinA : sinB : sinC ...

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  20. Prove that If A : B: C = 1: 2: 3 then sinA : sinB : sinC = 1:sqrt3...

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