Math, asked by rithigalakshmi, 3 months ago

8.
The value of cosec(70° +teta) - sec(20°- teta) + tan(65° +teta) - cot(25° -teta) is

Answers

Answered by ashishu89

1

Answer:

0

sec(20-teta)=cosec[90-(20-teta)]=cosec(90-20+teta) =cosec(70+teta)

similarly, cot(25-teta)=tan(65+teta)

now put the value in given equation,

cosec(70+teta) -cosec(70+teta) +tan(65+teta) -tan(65+teta) =0

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