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Evaluate : cos e c(65^0+theta)-sec(25...

Evaluate : `cos e c(65^0+theta)-sec(25^0-theta)-tan(55^0-theta)+cot(35^0+theta)`

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The value of the expression cosec (85^@+theta)- sec(5^@-theta)-tan (55^@+theta)+cot(35^@-theta) is: व्यंजक cosec (85^@+theta)- sec(5^@-theta)-tan (55^@+theta)+cot(35^@-theta) का मान है :

The value of the expression cosec(75^(@)+theta)-sec(15^(@)-theta) -tan(55^(@)+theta)+cot(35^(@)-theta) is :

Evaluate: (sec theta csc(90^(0)-theta)-tan theta cot(90^(0)-theta)+sin^(2)55^(0)+sin^(2)35^(@))/(tan10^(0)tan20^(0)tan60^(@)tan70^(0)tan80^(0))

What is cosec ( 75 ^(@) + theta) - sec (15 ^(@) - theta) - tan (55 ^(@) + theta) + cot ( 35 ^(@) - theta) equal to ?

Prove that ("cos"(90^0+theta)"sec"(-theta)"tan"(180^0-theta))/("sec"(360^0-theta)"sin"(180^0+theta)"cot"(90^0-theta))=-1.

VK GLOBAL PUBLICATION-INTRODUCTION TO TRIGONOMETRY-PROFICIENCY EXERCISE (SHORT ANSWER QUESTIONS-II)
  1. Show that tan48^(@) tan 23^(@) tan 42^(@) tan 67^(@) =1.

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  2. Prove that : (i) (sin 70^@)/(cos 20^@)+(cosec 20^@)/(sec 70^@)-2cos ...

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  3. Evaluate : cos e c(65^0+theta)-sec(25^0-theta)-tan(55^0-theta)+cot(...

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  4. Evaluate the ((3 cos 43^(@))/(sin 47^(@)))^(2) - (cos 37^(@) "cosec...

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  5. If sec 2A=cosec (A-42^@), where 2A is an acute angle, find the value o...

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  6. If sin (A - B) = 0 , cos (A + B) = 0, 0^(@) lt A + B le 90^(@), find...

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  7. If tan (A + B) = sqrt(3) and tan (A - B) = 0, 0^(@) lt A + B le 90^(@...

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  8. Prove : ( 1+ tan^2 theta )(1 + sin theta )(1 - sin theta) = 1.

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  9. If sin theta+cos theta=sqrt3, then prove that tan theta+cot theta=1

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  10. .If alpha+beta=90^(@), show that sqrt(cos alpha*csc beta-cos alpha*sin...

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  11. If tan theta =a/b, prove that (a sin theta- b cos theta)/(a sin theta+...

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  12. If sectheta=5/4 , find the value of (sintheta-2costheta)/(tantheta-...

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

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

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  15. If A = 30^(@) and B = 60^(@) , verify that cos (A + B) = cos A cos B -...

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  16. If A = 30^(@) and B = 60^(@), verify that sin (A + B) = sin A cos B + ...

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  17. If cottheta=(15)/8,t h e ne v a l u a t e((2+2sintheta)(1-sintheta)/((...

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  18. If sectheta=x+1/(4x),p rov et h a t :sectheta+tantheta=2xor ,1/(2x)

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  19. If sqrt(3) tan theta=3 sin theta and theta!=0 then find the value of s...

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  20. If cos e c\ theta=(13)/(12) , find the value of (2sintheta-3\ cos\ ...

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