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CBSE Class 10 Answered

cos80÷ sin10+cos59• cosec31
Asked by raopaidi | 25 Apr, 2024, 04:06: PM
answered-by-expert Expert Answer

Let  α = (cos80 / sin10 ) + ( cos59 * cosec31 )

sin10 = sin(90-80) = cos80

cosec31 = 1/sin31 = 1/sin(90-59) = 1/cos59

Hence we get ,

α = ( cos80 / cos80) + ( cos59 / cos59 ) = 2

 

Answered by Thiyagarajan K | 25 Apr, 2024, 05:52: PM

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