Advertisements
Advertisements
प्रश्न
Use tables to find cosine of 26° 32’
संख्यात्मक
Advertisements
उत्तर
cos 26° 32’ = cos (26° 30’ + 2’)
= 0.8949 − 0.0003
= 0.8946
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 21: Trigonometrical Identities - EXERCISE 21 (D) [पृष्ठ ३३९]
APPEARS IN
संबंधित प्रश्न
Write all the other trigonometric ratios of ∠A in terms of sec A.
Show that : sin 42° sec 48° + cos 42° cosec 48° = 2
Use tables to find the acute angle θ, if the value of tan θ is 0.7391
If A and B are complementary angles, prove that:
cosec2 A + cosec2 B = cosec2 A cosec2 B
If 3 cos θ = 5 sin θ, then the value of
\[\frac{5 \sin \theta - 2 \sec^3 \theta + 2 \cos \theta}{5 \sin \theta + 2 \sec^3 \theta - 2 \cos \theta}\] is?
If A, B and C are interior angles of a triangle ABC, then \[\sin \left( \frac{B + C}{2} \right) =\]
If ∆ABC is right angled at C, then the value of cos (A + B) is ______.
Prove the following.
tan4θ + tan2θ = sec4θ - sec2θ
Evaluate: `(cot^2 41°)/(tan^2 49°) - 2 (sin^2 75°)/(cos^2 15°)`
If x tan 60° cos 60°= sin 60° cot 60°, then x = ______.
