Question

express sec50 + cot78 in terms of t ratio of angles between 0 to 45 degree



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Answer 1

Answer:

Step-by-step explanation:

Sec(90-40) + cot(90-12)

Cosec 40 + tan12

Answer 2

Answer:use the theorem mentiones in ncert

Step-by-step explanation:

sec50=cosec30

cot78=tan12

THEREFORE

=cosec30 +tan12