If cot is equal to under root 7 find the value of cosec square theta minus sec square theta upon cosec square theta + sec square theta
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Answer: 3/4
Step-by-step explanation:
Cot = Root 7 .... so cot^2 =7
(cosec^2A-Sec^2A)/(cosec^2A+sec^2A)
= (1+cot^2A - Sec^2)/ (1+cot^2A+Sec^2) since Cosec^2 = 1 + cot^2
= 1+7-sec^2/ 1+7+sec^2
= 8-sec^2/8+sec^2
=8-(1+tan^2)/ 8 + (1-tan^2)
= Subsituting Tan^2 with 1/cot^2
=48/64
=3/4
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