Question

show that cosec 15° cosec 40° cos 75⁰ cos 50º = 1

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Answer 1

Answer:

cos 50. codec 40 + cos 55 . cosec 35

= cos (90-40). cosec 40 + cos (90-35) .cosec 35

= sin 40 . 1/sin 40 +sin35 . 1/sin35

= 1+1

= 2

Step-by-step explanation:

cos 50. codec 40 + cos 55 . cosec 35

= cos (90-40). cosec 40 + cos (90-35) .cosec 35

= sin 40 . 1/sin 40 +sin35 . 1/sin35

= 1+1

= 2

Answer 2

Answer:

see the above attachment

hope it helps you