Question

if cosec a =7/5 then findthe value of sec (90-a)

Answer 1

given,
cosec a = 7/5. ___(1)
and we know that,
cosec a = sec(90-a). ___ (2)

from (1) and (2), we have

sec (90-a) = 7/5

Answer 2

Answer:

$Value \: of \: sec(90-A)=\frac{7}{5}$

Step-by-step explanation:

$Given \\cosecA = \frac{7}{5}---(1)$

$We\: know \: that ,\\\boxed {sec(90-\theta)=cosec\theta}$

$Value \: of \: sec(90-A)\\=cosecA\\=\frac{7}{5}$

/* From (1) */

Therefore,

$Value \: of \: sec(90-A)=\frac{7}{5}$

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