Question #c208c

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Answer 1 · 2017-11-25T09:40:19

# sec27^@.#

Since, #csc(-theta)=-csc theta,# We have,

#csc(-7498^@)=-csc7498^@,#

#-csc(7560^@-62^@),#

#=-csc(21xx360^@-62^@),#

#-(-csc62^@),#

#=csc63^@,#

#=csc(90^@-27^@),#

#=sec27^@.#