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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

Find the value of the following: sin 65° 39′ + cos 24° 57’ + tan 10° 10′ - Mathematics

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Question

Find the value of the following:

sin 65° 39′ + cos 24° 57’ + tan 10° 10′

Sum

Solution

sin 65° 39′ = 0.9111

cos 24° 57′ = 0.9066

tan 10° 10′ = 0.1793

sin 65° 39′ + cos 24° 57′ + tan 10° 10′

= 0.9111 + 0.9066 + 0.1793

= 1.9970

sin 65° 39′ + cos 24° 57′ + tan 10° 10′ = 1.9970

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Trigonometric Table
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Chapter 6: Trigonometry - Exercise 6.4 [Page 239]

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Samacheer Kalvi Mathematics [English] Class 9 TN Board
Chapter 6 Trigonometry
Exercise 6.4 | Q 3. (i) | Page 239
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