Shivam Tiwari Asked a Question
August 29, 2020 10:16 ampts 30 pts
If sec (0-a), sec 8 and sec (0+ a) are in AP where cos a 1, then what is the vałue of sin0+ cos a? (a) (b) 1 (c) -1 (d)
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  • Deepak singh thankyou
    option a is correct
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  • Deepak singh
    see attached solution
    • cropped-140340202.jpg
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  • Deepak singh
    any doubt then ask
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