Home
Class 10
MATHS
Without using trigonometric tables, eval...

Without using trigonometric tables, evaluate :
(i) `(sin16^@)/(cos 74^@)`
(ii) `(sec 11^@)/(cosec 79^@)`
(iii) ` (tan 27^@)/(cot 63^@)`
(iv) `(cos 35^@)/(sin 55^@)`
(v) `(cosec 42^@)/(sec 48^@)`
(vi)` (cot 38^@)/(tan 52^@)`

Text Solution

Verified by Experts

The correct Answer is:
(i) 1 (ii) 1 (iii) 1 (iv) 1 (v)1 (vi) 1
Promotional Banner

Similar Questions

Explore conceptually related problems

Without using trigonometric tables , evaluate : (i) (sin11^(@))/(cos79^(@)) (ii) (sec15^(@))/("cosec"75^(@)) (iii) (tan54^(@))/(cot36^(@)) (iv) (cos68^(@))/(sin22^(@)) (v) ("cosec"24^(@))/(sec66^(@)) (vi) (cot18^(@))/(tan72^(@))

Without using trigonometric tables, evaluate : (i) (cos 53^@)/(sin 37^@) (ii) (tan68^@)/(cot 22^@) (iii) (sec49^@)/(cosec 41^@) (iv) (sin 30^@17')/(cos 59^@43')

Without using trigonometric tables, evaluate : (i) cos 48^@-sin42^@ (ii) cosec31^@-sec59^@ (iii) cot 34^@-tan56^@ (iv) cos^2 13^@-sin^2 77^@

Evaluate the following : (i) (sin58^(@))/(cos32^(@)) (ii) (sec42^(@))/("cosec"48^(@)) (iii) (tan37^(@))/(cot53^(@))

Without using trigonometric tables , evaluate : (i) (sin40^(@))/(cos50^(@))+(3tan50^(@))/(cot40^(@)) (ii) (sec37^(@))/("cosec "53^(@))-(tan20^(@))/(cot70^(@)) (iii) (cos74^(@))/(sin16^(@))+(sin12^(@))/(cos78^(@))-sin18^(@)sec72^(@) (iv) sin35^(@)sec55^(@)+(4sec32^(@))/("cosec "58^(@))

Evaluate : (i) tan42^(@)-cot48^(@) (ii) sec36^(@)-"cosec"54^(@)

Without using the trigonometric tables, evaluate the following : (11)/(7) (sin 70^(@))/(cos 20^(@)) - (4)/(7) (cos 53^(@) "cosec" 37^(@))/(tan 15^(@) tan 35^(@) tan 55^(@) tan 75^(@))

Without using trigonometric tables , evaluate : ((tan20^(@))/(cosec70^(@)))^(2)+((cot20^(@))/(sec70^(@)))^2+2tan 15^(@)tan37^(@)tan53^(@)tan60^(@)tan75^(@)

Without using trigonometric tables, find the value of : (2)/(3) ((sec 56^(@))/( cosec 34^(@))) - 2 cos^(2) 20^(@) + (1)/(2) cot 28^(@) cot 35^(@) cot 45^(@) cot 62^(@) cot 55^(@) - 2 cos ^(2) 70^(@)

Without using trigonometric tables , prove that : (i) sin50^(@)-cos40^(@)=0 (ii) tan36^(@)-cot54^(@)=0 (iii) sec25^(@)-"cosec "65^(@)=0 (iv) sin^(2)32^(@)+sin^(2)58^(@)=1 (v) "cosec"^(2)39^(@)tan^(2)51^(@)=1 (vi) sec^(2)10^(@)-cot^(2)80^(@)=1