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Prove that : tan 11^(@) 15' = sqrt(4+2...

Prove that :
`tan 11^(@) 15' = sqrt(4+2sqrt(2))-sqrt(2)-1`

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CHHAYA PUBLICATION-MISCELLANEOUS EXAMPLES-TRIGONOMETRY
  1. If -360^(@) lt A lt -270^(@), show that "sin"(A)/(2)=- sqrt((1-cosA)/...

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  2. If 2 sin A= sqrt(1+ sin 2A)- sqrt(1-sin2A) then find the limits of val...

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  3. Prove that : tan 11^(@) 15' = sqrt(4+2sqrt(2))-sqrt(2)-1

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  4. In triangle ABC , if C is a right prove that (sin^(2)A)/(sin^(2)B)-(co...

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  5. Using the identity tan A =(sin 2A)/(1+cos2A) find the value of tan 15^...

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  6. Prove that the lengths of the chord of a circle which subtends an angl...

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  7. In any triangle ABC "if" (b+c)/(a)="cot"(A)/(2), prove that the triang...

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  8. If the angles of a triangle be, A,B,C and cos theta (sin B+ sin C) = s...

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  9. If the sides a,b,c of a triangle ABC are in A.P., prove that cosA "cot...

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  10. If a is the smallest side of a triangle and a,b,c are in A.P. prove th...

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  11. In a triangle ABC if b+c=3a then find the value of cot(B/2)cot(C/2)

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  12. If the medium AD is perpendicular to the side AB in the triangle ABC, ...

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  13. Show that the perimeter of any triangle is equal to 2 "cos" (A)/(2)...

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  14. If sin theta+cos theta=a,tan theta+cot theta=b, show that (a^(2)-1)/(2...

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  15. If the three side of a triangle be a, b, c and tan theta=(2 sqrt(ab))...

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  16. In the triangle ABC, if cos 3 A + cos 3B+ cos 3C=1, show that the tria...

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  17. Show that : tan 20^(@)+ tan 70^(@)= 2 "cosec" 40^(@)

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  18. Show that : "sin" 2(pi)/(7)+ "sin"(4pi)/(7)-"sin" (6pi)/(7) =4 "sin"...

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  19. Show that : tan 70^(@)=2 tan 40^(@)+ tan 20^(@)+ 4 tan 10^(@)

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  20. The length of hypotenuse and one side of a right -angle triangle are ...

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