Advertisements
Advertisements
Question
Use tables to find cosine of 65° 41’
Numerical
Solution
cos 65° 41’ = cos (65° 36’ + 5’)
= 0.4131 − 0.0013
= 0.4118
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
`\text{Evaluate }\frac{\tan 65^\circ }{\cot 25^\circ}`
Evaluate:
cosec (65° + A) – sec (25° – A)
Evaluate:
`2 tan57^circ/(cot33^circ) - cot70^circ/(tan20^circ) - sqrt(2) cos45^circ`
Use tables to find sine of 47° 32'
Use tables to find the acute angle θ, if the value of sin θ is 0.3827
Prove that:
sec (70° – θ) = cosec (20° + θ)
If x tan 45° cos 60° = sin 60° cot 60°, then x is equal to
\[\frac{2 \tan 30° }{1 + \tan^2 30°}\] is equal to
tan 5° ✕ tan 30° ✕ 4 tan 85° is equal to
Express the following in term of angles between 0° and 45° :
cos 74° + sec 67°