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Evaluate the following: (tan45^@)/(cos...

Evaluate the following: `(tan45^@)/(cos e c\ 30^@)+(sec60^@)/(cot45^@)-(5sin90^@)/(2cos0^@)`

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Evaulate : (tan45^(@))/("cosec "30^(@))+(sec60^(@))/(cot45^(@))-(2sin90^(@))/(cos0^(@)) .

Evaluate each of the following : (sin^(2)+30^(@)+4cot^(2)45^(@)-sec^(2)60^(@))(cosec^(2)45^(@)sec^(2)30^(@))

Evaluate the following (i) sin 60^@ cos30^@ + sin 30^@ cos 60^@ (ii) 2tan^2 45^@ + cos^2 30^@ - sin^2 60^@ (iii) (cos45^@)/(sec30^@ + c o s e c 30^@) (iv) (sin30^@ + tan45^@ - c o s e c 60^@ )/(sec30^@ + cos60^@ +cot45^@) (v) (5cos^2 60^@ + 4sec^2 30^@ - tan^2 45^@ )/ (sin^2 30^@ + cos^2 30^@ )

Find the value of the following (i) tan 60^@ xx cos 30^@ (ii) sin 45^@ * cos 45^@ – sin^2 30^@ (iii) 2 sin 45^@* cos 45^@*tan 45^@ (iv) cos 30^@* cos 45^@ – sin 30^@* sin 45^@ (v) tan 30^@* sec 45^@ + tan 60^@* sec 30^@

Find the value of tan45^(@)+2cos60^(@)-sec60^(@) .

Evaulate : 4-(sin30^(@)+tan45^(@)-"cosec"60^(@))/(sec30^(@)+cos60^(@)+cot45^(@))

RD SHARMA-TRIGONOMETRIC RATIOS-All Questions
  1. Evaluate the following: (i) 4/(cot^2 30o)+1/(sin^2 60o)-cos^2 45o ...

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  2. Evaluate the following: (tan^2 60o+4cos^2 45o+3sec^2 30o+5cos^2 90o...

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  3. Evaluate the following: (tan45^@)/(cos e c\ 30^@)+(sec60^@)/(cot45^@...

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  4. Find the value of x in each of the following: (i) 2sin3x=sqrt(3) (...

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  5. Find the value of x in each of the following: tanx=sin45ocos45o+...

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  6. If theta=30^@ , verify that: (i) tan2theta=(2tantheta)/(1-tan^2theta...

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  7. If theta=30^@ , verify that: (i) cos2theta=(1-tan^2theta)/(1+tan^2th...

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  8. If A=B=60^@ , verify that (i) cos(A-B)=cosAcosB+sinAsinB (ii) sin(A...

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  9. If A=30o and B=60o , verify that sin(A+B)=sinAcosB+cosAsinB (ii) c...

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  10. Using the formula of sin(A-B)=sinAcosB-cosAsinB find the value of sin1...

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  11. In a right triangle A B C , right angled at C , if /B=60o and A ...

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  12. If /\A B C is a right triangle such that /C=90^@ , /A=45^@ and B C=7...

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  13. In a rectangle A B C D ,\ \ A B=20 c m ,\ \ /B A C=60o , calculate ...

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  14. If sin(A+B)=1 and cos(A-B)=1,\ \ 0o<A+Blt=90o , AgeqB find A and B .

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  15. If tan(A-B)=1/(sqrt(3)) and tan(A+B)=sqrt(3) , 0^@ < A+B lt= 90^@, A >...

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  16. If sin(A-B) = 1/2 and cos(A+B) = 1/2, 0^@ < A+B < 90^@ and A>B, then f...

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  17. In a /\A B C right angled at B , /A=/C . Find the values of (i) si...

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  18. If A and B are acute angles such that tanA=1/2 , tanB=1/3 and tan(A...

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  19. In /\P Q R , right-angled at Q ,\ P Q=3c m and P R=6c m . Determine ...

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  20. Evaluate the following: (i) (cos80o)/(sin10o)+cos59o\ cos e c\ 31o ...

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