Question

27) Show that, tan20 + cot20 + 2 = sec20cosec20​

Answer 1

Given that

tan20 + cot 20 +2

sin 20/cos20 +cos20/sin 20 +2

sin^20 +cos^20 +2cos 20 × sin 20/cos20×sin20

1/cos20×sin20

1/cos20 × 1/sin20

sec20 ×cosec20

Hence proved

Answer 2

Step-by-step explanation:

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